DOMAŃSKI, Czesław. Julian Perkal – pioneer of new statistical methods in science. Acta Universitatis Lodziensis. Folia Oeconomica, [S. l.], v. 3, n. 302, 2014. Disponível em: https://czasopisma.uni.lodz.pl/foe/article/view/202. Acesso em: 21 dec. 2025.