SZMIDT, S. Fr Leon Piasecki’s (1889-1957) Bibliography of non Published Letters from India (1922-1957). Seminare. Poszukiwania naukowe, [S. l.], v. 24, p. 541–558, 2007. DOI: 10.21852/sem.2007.24.38. Disponível em: https://czasopisma.uksw.edu.pl/index.php/s/article/view/11915. Acesso em: 19 maj. 2024.