Centerwall, W.R.; Benirschke, K. (1973). "Male Tortoiseshell and Calico (T-C) Cats: Animal models of sex chromosome mosaics, aneuploids, polyploids, and chimerics". Journal of Heredity. 64 (5): 272–278. doi:10.1093/oxfordjournals.jhered.a108410. PMID4798734.
Centerwall, W.R.; Benirschke, K. (1973). "Male Tortoiseshell and Calico (T-C) Cats: Animal models of sex chromosome mosaics, aneuploids, polyploids, and chimerics". Journal of Heredity. 64 (5): 272–278. doi:10.1093/oxfordjournals.jhered.a108410. PMID4798734.