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Kleisner, K; Ivell, R; Flegr, J (2010). "The evolutionary history of testicular externalization and the origin of the scrotum". Journal of Biosciences. 35 (1): 27–37. doi:10.1007/s12038-010-0005-7. PMID20413907. S2CID11962872.
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Elgar, M. A.; Harvey, P. H. (1987). "Basal Metabolic Rates in Mammals: Allometry, Phylogeny and Ecology". Functional Ecology. 1 (1): 25–36. doi:10.2307/2389354. JSTOR2389354.
David Archibald, J (2003). "Timing and biogeography of the eutherian radiation: Fossils and molecules compared". Molecular Phylogenetics and Evolution. 28 (2): 350–9. doi:10.1016/S1055-7903(03)00034-4. PMID12878471.
Kleisner, K; Ivell, R; Flegr, J (2010). "The evolutionary history of testicular externalization and the origin of the scrotum". Journal of Biosciences. 35 (1): 27–37. doi:10.1007/s12038-010-0005-7. PMID20413907. S2CID11962872.
Kleisner, K; Ivell, R; Flegr, J (2010). "The evolutionary history of testicular externalization and the origin of the scrotum". Journal of Biosciences. 35 (1): 27–37. doi:10.1007/s12038-010-0005-7. PMID20413907. S2CID11962872.