Cieślik, J.J. and Kaliszewska-Drozdowska, M.D. 1977. Interrelation of Morphological Characters in Human Development as Interpreted with the Method of Equiprobable Elipses. Anthropological Review. 43, 2 (Dec. 1977), 385–394. DOI:https://doi.org/10.18778/1898-6773.43.2.12.