Sharpe, 1984 (Google Books, ang.) Seppo Lallukka The East Finnic minorities in the Soviet Union: an appraisal of the erosive trends, Suomalainen Tiedeakatemia, 1990 (Google Books, ang.) Rein Taagepera The Finno-Ugric Republics and the Russian State, Routledge, 1999 (Google Books, ang.) Edith Jemima Simcox Primitive Civilizations: Or, Outlines of the History of Ownership in Archaic Communities, Cambridge University Press, 2010 (Google Books, ang.)
Linki zewnętrzne Fundacja Finno-Ugryjska Badania genetyczne w Finlandii