SĘKOWSKA, E. Letter as a source for reconstructing the history of Polish linguistics. Białostockie Archiwum Językowe, [S. l.], n. 20, p. 245–254, 2020. DOI: 10.15290/baj.2020.20.19. Disponível em: https://czasopisma.filologia.uwb.edu.pl/index.php/baj/article/view/1467. Acesso em: 19 may. 2024.