Bibliography

Bibliography of Vitality:
Salminen, Tapani. 2007. "Europe and North Asia." In Encyclopedia of the World's Endangered Languages, edited by C. Moseley. 211-282. London & New York: Routledge.
Bibliography of Locations:
Haliny Karaś. "Dialekty I Gwari Polskie." Online: http://www.dialektologia.uw.edu.pl/index.php?l1=opis-dialektow.
Bibliography of Context:
Salminen, Tapani. 2007. "Europe and North Asia." In Encyclopedia of the World's Endangered Languages, edited by C. Moseley. 211-282. London & New York: Routledge.