"Documentation of Ös: A Turkic Language of Siberia" HRELP Abstract . Gregory Anderson and David Harrison (2005) · http://www.hrelp.org/grants/projects/index.php?projid=41

Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·