^ Olsen, Birgit Anette (1999) The noun in Biblical Armenian: origin and word-formation: with special emphasis on the Indo-European heritage (Trends in linguistics. Studies and monographs; 119), Berlin, New York: Mouton de Gruyter, pages 36, 881
^ Adams, Douglas Q. (2013) “eñcuwo”, in A Dictionary of Tocharian B: Revised and Greatly Enlarged (Leiden Studies in Indo-European; 10), Amsterdam, New York: Rodopi, →ISBN, pages 84-85
^ Adams, Douglas Q. (2013) “kutk-”, in A Dictionary of Tocharian B: Revised and Greatly Enlarged (Leiden Studies in Indo-European; 10), Amsterdam, New York: Rodopi, →ISBN, page 194