ORŁOWSKI, Hubert. Fritz von Unruh - ein Tolstojaner?. Studia Germanica Posnaniensia, [S. l.], v. 17, p. 105–114, 2018. DOI: 10.14746/sgp.1991.17.06. Disponível em: https://pressto.amu.edu.pl/index.php/sgp/article/view/15960. Acesso em: 2 maj. 2024.