↑ Tapani Salminen, "The rise of the Finno-Ugric language family." In Carpelan, Parpola, & Koskikallio (eds.), Early contacts between Uralic and Indo-European: linguistic and archaeological considerations. Mémoires de la Société Finno-Ougrienne 242; Helsinki 2001. 385–396.
↑ Aikio, Ante (2019). “Proto-Uralic”. Trong Bakró-Nagy, Marianne; Laakso, Johanna; Skribnik, Elena (biên tập). Oxford Guide to the Uralic Languages. Oxford, UK: Oxford University Press. tr. 1–4.
