Tambovtsev, Yuri. βIs the Taxon of Altaic Languages Natural or Artificial?β.
Lingua Posnaniensis
51, no. 1 (January 14, 2010): 133β154. Accessed April 10, 2025. https://pressto.amu.edu.pl/index.php/linpo/article/view/v10122-009-0009-7.