Amur Oblast
Amur Oblast | |
---|---|
Амурская область | |
Coordinates: 53°33′N 127°50′E / 53.550°N 127.833°E | |
Country | Russia |
Federal district | Far Eastern[1] |
Economic region | Far Eastern[2] |
Administrative center | Blagoveshchensk[3] |
Government | |
• Body | Legislative Assembly[4] |
• Governor[4] | Vasily Orlov[5] |
Area | |
• Total | 361,908 km2 (139,733 sq mi) |
• Rank | 14th |
Population | |
• Total | 766,912 |
• Estimate (2018)[8] | 798,424 |
• Rank | 60th |
• Density | 2.1/km2 (5.5/sq mi) |
• Urban | 68.1% |
• Rural | 31.9% |
Time zone | UTC+9 (MSK+6 [9]) |
ISO 3166 code | RU-AMU |
License plates | 28 |
OKTMO ID | 10000000 |
Official languages | Russian[10] |
Website | http://www.amurobl.ru/ |
Amur Oblast (/əˈmʊər ˈɒblæst/)[a] is a federal subject of Russia (an oblast), located on the banks of the Amur and Zeya rivers in the Russian Far East. The oblast borders Heilongjiang province of the People's Republic of China (PRC) to the south.
The administrative center of the oblast, the city of Blagoveshchensk, is one of the oldest settlements in the far east of the country, founded in 1856. It is a traditional center of trade and gold mining. The territory is accessed by two railways: the Trans-Siberian Railway and the Baikal–Amur Mainline. As of the 2021 Census, the oblast's population was 766,912.[12]
Names
[edit]Amur Krai (Аму́рский край) or Priamurye (Приаму́рье 'Circum-Amur') were unofficial names for the Russian territories by the Amur River used in the late Russian Empire that approximately correspond to modern Amur Oblast.
Geography
[edit]Amur Oblast is located in the southeast of Russia, between Stanovoy Range in the north and the Amur River in the south, and borders with the Sakha Republic in the north, Khabarovsk Krai and the Jewish Autonomous Oblast in the east, Heilongjiang of China in the south, and with Zabaykalsky Krai in the west. The Stanovoy Range forms the dividing line between the Sakha Republic and Amur Oblast and spreads across the oblast's entire northern border. The Amur–Zeya and Zeya–Bureya Plains cover about 40% of the oblast's territory, but the rest is hilly. Several mountain ranges rise to the south of Stanovoy Range, including the Selemdzha Range parallel to it, as well as the Ezop, Yam-Alin and the Turan ranges stretching along the oblast's southeastern border with Khabarovsk Krai.[13]
Many rivers flow through the oblast, especially in the north, accounting for 75% of the hydropower resources in the Russian Far East. Most of the oblast is in the Amur's drainage basin, although the rivers in the northwest drain into the Lena and the rivers in the northeast drain into the Uda. The longest rivers include the Amur, Bureya, Gilyuy, Nyukzha, Olyokma, Selemdzha, and Zeya. The Zeya begins in the mountains in the northeast, and its middle reaches are dammed to create the huge Zeya Reservoir, which sprawls over 2,400 square kilometers (930 sq mi).
Climate is temperate continental, with cold, dry winters and hot, rainy summers. Average January temperatures vary from −24 °C (−11 °F) in the south to −33 °C (−27 °F) in the north. Average July temperatures are +21 °C (70 °F) in the south and +18 °C (64 °F) in the north. Annual precipitation is about 850 millimeters (33 in).
Dwarf Siberian pine and alpine tundra grow at higher elevations and larch forests with small stands of flat-leaved birch and pine forests grow alongside the river plains. These larch and fir-spruce forests form the watershed of the Selemdzha River. The Bureya and Arkhara Rivers, southeast of the Selemdza, have the richest remaining forests in the oblast with Korean pine, Schisandra chinensis, Mongolian Oak, and other Manchurian flora. The Zeya–Bureya Plain, located between the Zeya, Amur, and Bureya Rivers, has the highest biodiversity in Amur Oblast. Much of this plain has been burned for agriculture, but large patches still remain. Japanese Daurian and Far Eastern western cranes nest here, as well as a host of other rare birds.
Natural resources
[edit]Amur Oblast has considerable reserves of many types of mineral resources; proven reserves are estimated to be worth US$400 billion. Among the most important are gold (the largest reserves in Russia), silver, titanium, molybdenum, tungsten, copper, and tin. There are also an estimated 70 billion tons of bituminous coal and lignite reserves. Probable iron deposits are estimated to be 3.8 billion tons. The Garin deposit is fully explored and known to contain 389 million tons of iron ore. Estimated reserves of the deposit are 1,293 million tons. The deposit's ore contains a low concentration of detrimental impurities; the ore contains 69.9% iron. Amur Oblast is also a promising source of titanium, with the Bolshoy Seyim deposit being the most important.[14]
History
[edit]Early history
[edit]According to the Bei Shi (Dynastic History of Northern Dynasties) and the Sui Shu (Chronicles of the Sui dynasty), both Chinese records, this area belonged originally to the territory one of the five semi-nomadic Shiwei, the Bo Shiwei tribes (Chinese: 钵室韋). Their settlements were located on the north of the Yilehuli Mountains in the upper reaches of the Nen River, south of the Stanovoy Range, west of the Bureya and the Malyi Khingan ranges and reaching the Okhotsk Sea on the northeast. They brought tributary presents to the Tang court and disappeared at the dawn of the tenth century with the foundation of the Liao empire.
Later, in the 13th century, the middle-Amur and the Zeya River basin area became the homeland of the Daurs and (further south) the Duchers. The ancestors of the Daurs are thought to be closely related to the Khitans and the Mongols, while the Duchers may have been a branch of the Jurchen people, later known as the Manchus.
The area was conquered by the Manchus in 1639–1640, after defeating the Evenk Federation led by Bombogor. It was returned to the Qing dynasty in the Treaty of Nerchinsk with the Tsardom of Russia.
Russian Empire
[edit]The region was annexed by Russia in 1858 in the Treaty of Aigun between Russia and the Qing dynasty. Amur Oblast was established with its center in Blagoveshchensk.[15]
The region received its first influx of Russian settlers in the mid-seventeenth century. They were looking for a more temperate climate as an escape from the north. After the Opium War, when the Chinese Empire was exposed to the outside world, Russian explorers once again moved to the region (mostly Cossacks and peasant farmers). The last influx of people arrived upon the completion of the Trans-Siberian Railroad.
Modern history
[edit]In April 1920, the Far Eastern Republic, with its capital in Chita, was formed from Amur, Transbaikal, Kamchatka, Sakhalin, and Primorye regions as a democratic "buffer" state in order to avoid war with Japan. It existed until November 1922, when it joined the Russian SFSR.
In January 1926, the territory of Amur Oblast was split between the East Siberian Krai and the Far Eastern Krai. The East Siberian Oblast was divided into Irkutsk Oblast and Chita Oblast in 1937 and the part of Amur within it became part of Chita Oblast. The Far Eastern Krai was divided into Khabarovsk Krai and Primorye Krai in 1938. The territory of Amur Oblast that was in Far Eastern Krai was included in Khabarovsk Krai.
In 1948, Amur Oblast was finally separated from Khabarovsk Krai and Chita Oblast to become an independent region of the RSFSR. Rapid economic growth based on gold production began at that time, and living standards improved with the arrival of young specialists. As the Far Eastern District expanded, the demand for services such as electric power and housing also increased, which stimulated a new round of construction projects. New cities were built, along with the Zeya Hydroelectric Power Plant (Zeiskaya GES), which still supplies electricity to most of the Far Eastern District.[16] On 21 May 1998 Amur alongside Ivanovo, Kostroma, Voronezh Oblast, and the Mari El Republic signed a power-sharing agreement with the federal government, granting it autonomy.[17] This agreement would be abolished on 18 March 2002.[18]
Administrative divisions
[edit]The largest urban localities of the oblast are Blagoveshchensk, Belogorsk, Svobodny, Tynda, and Raychikhinsk.[19]
Politics
[edit]The Governor of Amur Oblast since 2018 is Vasily Orlov.
On 19 September 2021, elections to the Legislative Assembly of Amur Oblast were held. One self-nominee and seven parties entered the regional parliament: United Russia - 18 seats; the Communist Party of the Russian Federation - 3 seats; the Liberal Democratic Party of Russia, A Just Russia – For Truth, the Party of Pensioners, New People, and Communists of Russia - one each place.[20]
The Chairman of the Legislative Assembly is Konstantin Dyakonov.[21]
Governors
[edit]- 1991 - Albert Krivchenko
- 1993 - Alexander Surat
- 1993 - Vladimir Polevanov
- 1994 - Vladimir Diachenko
- 1996 - Yuriy Lyashko
- 1997 - Anatoly Belonogov
- 2001 - Leonid Korotkov
- 2007 - Nikolay Kolesov
- 2008 - Oleg Kozhemyako
- 2015 - Alexander Kozlov
- 2018 - Vasily Orlov
Demographics
[edit]Year | Pop. | ±% |
---|---|---|
1897 | 118,570 | ��� |
1926 | 412,200 | +247.6% |
1939 | 634,000 | +53.8% |
1959 | 717,514 | +13.2% |
1970 | 793,449 | +10.6% |
1979 | 937,389 | +18.1% |
1989 | 1,057,781 | +12.8% |
2002 | 902,844 | −14.6% |
2010 | 830,103 | −8.1% |
2021 | 766,912 | −7.6% |
Source: Census data |
Population: 766,912 (2021 Census);[12] 830,103 (2010 Census);[19] 902,844 (2002 Census);[22] 1,057,781 (1989 Soviet census).[23]
Ethnic groups
[edit]Ethnicity | Population | Percentage |
---|---|---|
Russians | 689,864 | 95.2% |
Ukrainians | 4,422 | 0.6% |
Armenians | 2,988 | 0.4% |
Uzbeks | 2,328 | 0.3% |
Azerbaijanis | 1,709 | 0.2% |
Tatars | 1,546 | 0.2% |
Other Ethnicities | 21,986 | 3.0% |
Ethnicity not stated | 42,069 | – |
Settlements
[edit]Largest cities or towns in Amur Oblast
2021 Russian Census | |||||||||
---|---|---|---|---|---|---|---|---|---|
Rank | Administrative Division | Pop. | |||||||
Blagoveshchensk Belogorsk |
1 | Blagoveshchensk | Blagoveshchensky District | 241,437 | Svobodny Tynda | ||||
2 | Belogorsk | Belogorsky District | 61,440 | ||||||
3 | Svobodny | Svobodnensky District | 48,517 | ||||||
4 | Tynda | Tyndinsky District | 28,625 | ||||||
5 | Zeya | Zeysky District | 19,414 | ||||||
6 | Chigiri | Blagoveshchensky District | 18,538 | ||||||
7 | Shimanovsk | Shimanovsky District | 16,488 | ||||||
8 | Raychikhinsk | Town of oblast significance of Raychikhinsk | 15,797 | ||||||
9 | Progress | Town of oblast significance of Progress | 9,918 | ||||||
10 | Zavitinsk | Zavitinsky District | 9,615 |
Vital statistics for 2022:[25][26]
- Births: 6,967 (9.0 per 1,000)
- Deaths: 11,346 (14.7 per 1,000)
Total fertility rate (2022):[27]
1.46 children per woman
Life expectancy (2021):[28]
Total — 66.30 years (male — 61.75, female — 71.11)
Religion
[edit]According to a 2012 survey[29] 25.1% of the population of Amur Oblast adheres to the Russian Orthodox Church, 5% are unaffiliated generic Christians, 1% is an Orthodox believer without belonging to any church or adheres to other (non-Russian) Orthodox churches, and 1% is an adherent of Islam. In addition, 41% of the population declares to be "spiritual but not religious", 24% is atheist, and 2.9% follows other religions or did not give an answer to the question.[29]
Economy
[edit]Gross regional product per capita in 2007 was 131,039.60 rubles, while the national average was 198,817 rubles.[31]
Industry
[edit]The industrial section contributes 18.3% to the total GRP.[14] The most important industrial sector in 2007 was manufacturing, constituting 25.7% of the industrial output. The sector is dominated by food products and beverages, which constitute 13% of industrial output. Machine building includes shipbuilding machinery, lifting and transport vehicles, mining equipment, agricultural machinery, metal assemblies and goods, electrical appliances and electrical machines and tools. The largest engineering companies in the oblast include OAO Svobodny Railroad Car Repair Plant, OAO Blagoveshchensk October Revolution Ship Building Plant and OAO Bureya-Kran.[14]
Mining and quarrying amounted to 19.9% of industrial output in 2007.[32] Amur Oblast ranks sixth in Russia for gold mining, and has the largest gold reserves in the country. The largest gold mine in the region is Pioneer, part of Petropavlovsk PLC who also own the Albyn, Malomir and Pokrovskiy mines in the region. There is a large site of uranium mining and processing facilities in Oktyabrsky, near the Russia–China border.[33] There are plans to develop other mineral deposits as well, such as titanium, iron, copper, nickel, apatite, etc. Total coal production amounts to 3,398 tons. As of 2007, four coal deposits are being operated by the company OOO Amur Coal, and two more have been explored. In total, the oblast is estimated to have over 90 deposits of lignite and black coal, with overall reserves of 70 billion tons. In addition, fuel extraction amounted to 2.9% of industrial output.[14]
Energy
[edit]Amur Oblast enjoys an energy surplus: its energy consumption in 2007 was 6.9 TWh, while production was 9.3 TWh. Electricity output in 2007 was 9.9 TWh. The most important electricity producer is the Zeyskaya Hydroelectric Power Station with an installed capacity of 1,330 MW and a yearly output of 4.91 TWh. The station is owned by RusHydro. The company also owns the 2,010 MW Bureyskaya Hydroelectric Power Station, opened in 2009. Its annual output is 7.1 TWh.[14]
Agriculture
[edit]The Amur Region is the primary producer of soybean in Russia. By 1940, 65 thousand hectares of land in Amur had been cultivated with soybeans, and by 1972 soybean made up 592 thousand hectares of land in Amur, compared to 650 thousand hectares of soybean crops in the whole of the USSR. During the Soviet period, this made up a significant proportion of the economy of Far Eastern Russia.[34] By 2019, the Amur Region's share of Russian soybean production had declined to 28 percent due to increased cultivation of soybean in other regions, though it still remains Russia's largest soybean producer.[35] The region in 2019 produced approximately 1 million tonnes of soybean, many of which are exported to neighboring China. While in the past the harvested soybean was shipped west, in recent years due to increased Chinese demands multiple soybean oil plants have opened in the region.[36] In 2019, Chinese companies owned or leased some 100 thousand hectares out of the 1.3 million hectares of farmland.[37]
Foreign trade
[edit]The oblast's main foreign exports are raw timber (1,172,900 cubic meters going to China, North Korea, Japan, Kazakhstan and Ukraine), metal goods (68,300 tons to China and Kazakhstan), and machinery, equipment and transport (12,300 tons to China, Japan, South Korea, Kazakhstan and Ukraine.) Main foreign imports are food and beverages from China, Kazakhstan, Uzbekistan and Philippines; textiles and footwear from China; and machinery and equipment from Ukraine and Japan.[14]
Vostochny cosmodrome
[edit]In July 2010, Prime Minister Vladimir Putin announced that the area would be the site of a new Vostochny Cosmodrome ("Eastern Spaceport"), to reduce Russian dependence on the Baikonur Cosmodrome in Kazakhstan.[38] The first rocket launch from the site took place on 28 April 2016.[citation needed]
Sister province
[edit]- Chungnam, South Korea
References
[edit]Notes
[edit]- ^ Russian: Амурская область, romanized: Amúrskaya óblast, IPA: [ɐˈmurskəjə ˈobɫəsʲtʲ]
Citations
[edit]- ^ Президент Российской Федерации. Указ №849 от 13 мая 2000 г. «О полномочном представителе Президента Российской Федерации в федеральном округе». Вступил в силу 13 мая 2000 г. Опубликован: "Собрание законодательства РФ", No. 20, ст. 2112, 15 мая 2000 г. (President of the Russian Federation. Decree #849 of May 13, 2000 On the Plenipotentiary Representative of the President of the Russian Federation in a Federal District. Effective as of May 13, 2000.).
- ^ Госстандарт Российской Федерации. №ОК 024-95 27 декабря 1995 г. «Общероссийский классификатор экономических регионов. 2. Экономические районы», в ред. Изменения №5/2001 ОКЭР. (Gosstandart of the Russian Federation. #OK 024-95 December 27, 1995 Russian Classification of Economic Regions. 2. Economic Regions, as amended by the Amendment #5/2001 OKER. ).
- ^ Charter of Amur Oblast, Article 118
- ^ a b Charter of Amur Oblast, Article 10
- ^ Official website of Amur Oblast. Alexander Alexandrovich Kozlov Archived July 8, 2015, at the Wayback Machine (in Russian)
- ^ "Сведения о наличии и распределении земель в Российской Федерации на 01.01.2019 (в разрезе субъектов Российской Федерации)". Federal Service for State Registration, Cadastre and Cartography. Archived from the original on February 9, 2022. Retrieved August 29, 2023.
- ^ "Оценка численности постоянного населения по субъектам Российской Федерации". Federal State Statistics Service. Retrieved September 1, 2022.
- ^ "26. Численность постоянного населения Российской Федерации по муниципальным образованиям на 1 января 2018 года". Federal State Statistics Service. Retrieved January 23, 2019.
- ^ "Об исчислении времени". Официальный интернет-портал правовой информации (in Russian). June 3, 2011. Retrieved January 19, 2019.
- ^ Official throughout the Russian Federation according to Article 68.1 of the Constitution of Russia.
- ^ USSR. Administrative-Territorial Divisions of the Union Republics, p. 99
- ^ a b Russian Federal State Statistics Service. Всероссийская перепись населения 2020 года. Том 1 [2020 All-Russian Population Census, vol. 1] (XLS) (in Russian). Federal State Statistics Service.
- ^ Google Earth
- ^ a b c d e f "Amur Region". Russia: All Regions Trade & Investment Guide (PDF). CTEC Publishing LLC. 2008. Archived from the original (PDF) on July 15, 2011.
- ^ Military Governors of the Amur Oblast. Part II
- ^ "Amur Region". Kommersant.com. Archived from the original on October 13, 2012. Retrieved August 21, 2013.
- ^ "Newsline - May 22, 1998 Yeltsin Signs More Power-Sharing Agreements with Regions". Radio Free Europe/Radio Liberty. June 20, 2008. Retrieved May 2, 2019.
- ^ Chuman, Mizuki. "The Rise and Fall of Power-Sharing Treaties Between Center and Regions in Post-Soviet Russia" (PDF). Demokratizatsiya: 146. Archived from the original (PDF) on March 8, 2019. Retrieved May 3, 2019.
- ^ a b Russian Federal State Statistics Service (2011). Всероссийская перепись населения 2010 года. Том 1 [2010 All-Russian Population Census, vol. 1]. Всероссийская перепись населения 2010 года [2010 All-Russia Population Census] (in Russian). Federal State Statistics Service.
- ^ "В Госдуму пройдут представители восьми партий" [Representatives of eight parties will pass to the State Duma]. Амурская правда. September 21, 2021. Archived from the original on September 25, 2021. Retrieved September 20, 2022.
- ^ "Законодательное Собрание Амурской области" [Legislative Assembly of the Amur Oblast]. Archived from the original on January 9, 2014. Retrieved June 3, 2014.
- ^ Federal State Statistics Service (May 21, 2004). Численность населения России, субъектов Российской Федерации в составе федеральных округов, районов, городских поселений, сельских населённых пунктов – районных центров и сельских населённых пунктов с населением 3 тысячи и более человек [Population of Russia, Its Federal Districts, Federal Subjects, Districts, Urban Localities, Rural Localities—Administrative Centers, and Rural Localities with Population of Over 3,000] (XLS). Всероссийская перепись населения 2002 года [All-Russia Population Census of 2002] (in Russian).
- ^ Всесоюзная перепись населения 1989 г. Численность наличного населения союзных и автономных республик, автономных областей и округов, краёв, областей, районов, городских поселений и сёл-райцентров [All Union Population Census of 1989: Present Population of Union and Autonomous Republics, Autonomous Oblasts and Okrugs, Krais, Oblasts, Districts, Urban Settlements, and Villages Serving as District Administrative Centers]. Всесоюзная перепись населения 1989 года [All-Union Population Census of 1989] (in Russian). Институт демографии Национального исследовательского университета: Высшая школа экономики [Institute of Demography at the National Research University: Higher School of Economics]. 1989 – via Demoscope Weekly.
- ^ "Национальный состав населения". Federal State Statistics Service. Retrieved December 30, 2022.
- ^ "Information on the number of registered births, deaths, marriages and divorces for January to December 2022". ROSSTAT. Archived from the original on March 2, 2023. Retrieved February 21, 2023.
- ^ "Birth rate, mortality rate, natural increase, marriage rate, divorce rate for January to December 2022". ROSSTAT. Archived from the original on March 2, 2023. Retrieved February 21, 2023.
- ^ Суммарный коэффициент рождаемости [Total fertility rate]. Russian Federal State Statistics Service (in Russian). Archived from the original (XLSX) on August 10, 2023. Retrieved August 10, 2023.
- ^ "Демографический ежегодник России" [The Demographic Yearbook of Russia] (in Russian). Federal State Statistics Service of Russia (Rosstat). Retrieved June 1, 2022.
- ^ a b c "Arena: Atlas of Religions and Nationalities in Russia". Sreda, 2012.
- ^ 2012 Arena Atlas Religion Maps. "Ogonek", № 34 (5243), August 27, 2012. Retrieved April 21, 2017. Archived.
- ^ Валовой региональный продукт на душу населения Archived February 24, 2021, at the Wayback Machine Федеральная служба государственной статистики
- ^ Baklanov, Petre Y. (2015). Environmental change and the social response in the Amur River Basin. Tokyo: Springer. ISBN 978-4-431-55245-1. Retrieved September 10, 2024.
- ^ Shandala N, Filonova A, Titov A, Isaev D, Seregin V, Semenova V, and Metlyaev EG (2009), Radiation situation nearby the uranium mining facility, 54th Annual Meeting of the Health Physics Society, July 12–16, 2009, Minneapolis, MN, USA.
- ^ Boiarskaia, A I; Hasegawa, H; Boiarskii, B S; Lyude, A V (September 2, 2020). "History of development of Soybean Production in the Amur Region and Far East District in the USSR". IOP Conference Series: Earth and Environmental Science. 548 (2): 022079. Bibcode:2020E&ES..548b2079B. doi:10.1088/1755-1315/548/2/022079. ISSN 1755-1315.
- ^ Selikhova, O A; Tikhonchuk, P V (August 5, 2020). "Problems of rational varietal placement of soybean in the Amur region". IOP Conference Series: Earth and Environmental Science. 547 (1): 012033. Bibcode:2020E&ES..547a2033S. doi:10.1088/1755-1315/547/1/012033.
- ^ Kurmanaev, Thomas Grove and Anatoly (February 21, 2019). "A Surprise Winner From the U.S.-China Trade Spat: Russian Soybean Farmers". Wall Street Journal. Retrieved December 23, 2020.
- ^ "Why Chinese farmers have crossed border into Russia's Far East". BBC News. November 1, 2019. Retrieved December 23, 2020.
- ^ Moskvitch, Katia (July 20, 2010). "BBC News – Russia to kick off construction of a new spaceport". Bbc.co.uk. Retrieved August 21, 2013.
Sources
[edit]- Амурское областное Собрание. №40-ОЗ 13 декабря 1995 г. «Устав (Основной Закон) Амурской области», в ред. Закона №384-ОЗ от 7 июля 2014 г. «О внесении изменений в Устав (Основной Закон) Амурской области». Вступил в силу через десять дней после официального опубликования. Опубликован: "Амурская правда", №295–296, 20 декабря 1995 г. (Amur Oblast Assembly. #40-OZ December 13, 1995 Charter (Basic Law) of Amur Oblast, as amended by the Law #384-OZ of July 7, 2014 On Amending the Charter (Basic Law) of Amur Oblast. Effective as of the day which is ten days after the official publication.).
- Дударев, В. А.; Евсеева, Н. А. (1987). И. Каманина (ed.). СССР. Административно-территориальное деление союзных республик (in Russian). Moscow.
{{cite book}}
: CS1 maint: location missing publisher (link) - Губернатор Амурской области. Постановление №607 от 25 октября 2005 г. «О совершенствовании системы информационного обеспечения органов государственной власти и местного самоуправления области». (Governor of Amur Oblast. Resolution #607 of October 25, 2005 On Improving the Information System Serving the Organs of the State Power and the Local-Self Government of the Oblast. ).
- Information concerning the Shiwei tribes and their relationship with the Khitans
- (in Russian) History of Amur Oblast
External links
[edit]Media related to Amur Oblast at Wikimedia Commons
- Kropotkin, Peter Alexeivitch (1911). . Encyclopædia Britannica. Vol. 1 (11th ed.). pp. 899–900.