Dzierżykray-Rogalski, Tadeusz, and Andrzej Wierciński. “The Skull and the Portrait of Jan Kochanowski: An Attempt at Reconstituting the poet’s Face”. Anthropological Review, vol. 46, no. 1, June 1980, pp. 173-9, doi:10.18778/1898-6773.46.1.13.