KWOLEK, A. In memory of Professor Boleslaw Grzegorczyk 1929-2010. European Journal of Clinical and Experimental Medicine, [S. l.], v. 9, n. 1, p. 7–9, 2011. Disponível em: https://journals.ur.edu.pl/ejcem/article/view/12971. Acesso em: 16 may. 2026.