^Danver, Steven. The Native People of the World, An Encyclopedia of Groups, Cultures and Contemporary Issues, Volume 1-3. Routledge. 2015: 565. ISBN 9780765682222. "Historically, all of the Western or Oghuz Turks have been called Turkmen or Turkomen... In the 7th century C.E., they migrated from their ancestral homeland in the Altay mountains westward..."
^Баскаков, Н. А. Тюркские языки, Москва 1960, с. 126-131.