Rybczynski, N. (27 December 2006). "Castorid phylogenetics: implications for the evolution of swimming and tree-exploitation in beavers". Journal of Mammalian Evolution. 14 (1): 1–35. doi:10.1007/s10914-006-9017-3. S2CID33659669.
Korth, W.W. (December 2001). "Comments on the systematics and classification of the beavers (Rodentia, Castoridae)". Journal of Mammalian Evolution. 8 (4): 279–296. doi:10.1023/A:1014468732231. S2CID27935955.
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Rybczynski, N. (27 December 2006). "Castorid phylogenetics: implications for the evolution of swimming and tree-exploitation in beavers". Journal of Mammalian Evolution. 14 (1): 1–35. doi:10.1007/s10914-006-9017-3. S2CID33659669.
Korth, W.W. (December 2001). "Comments on the systematics and classification of the beavers (Rodentia, Castoridae)". Journal of Mammalian Evolution. 8 (4): 279–296. doi:10.1023/A:1014468732231. S2CID27935955.