JURKOWSKI, R. Tsarist Russia - Bolshevik Russia - Contemporary Russia. Special session with the ceremony of conferring the title of Doctor Honoris Causa of the University of Warsaw to Professor Richard Pipes. Warsaw, 29-30 June 2010. Echa Przeszłości, [S. l.], n. XII, 2019. Disponível em: https://czasopisma.uwm.edu.pl/index.php/ep/article/view/3347. Acesso em: 20 kwi. 2024.