(原始内容存档于2024-01-13) (中文(简体)). 请检查|date=中的日期值 (帮助) 引文格式1维护:日期与年 (link) Vovin, Alexander. Some thoughts on the origins of the old Turkic 12-year animal cycle
History. 2016. UNESCO Atlas of the World's Languages in danger, UNESCO AlexanderVovin, "Tungusic Languages", in the Encyclopedia of Language and Linguistics