MARDOFEL, B. The letters sent by and to Chopin as a source of information for research on Tytus Woyciechowski family. Studia z Historii Społeczno-Gospodarczej XIX i XX Wieku, [S. l.], v. 9, p. 251–285, 2011. DOI: 10.18778/2080-8313.09.15. Disponível em: https://www.czasopisma.uni.lodz.pl/histspol/article/view/21791. Acesso em: 20 may. 2024.