MICHALIK, M. Prof. dr hab. Teodozja Rittel (1938–2019). Logopedia, [S. l.], v. 49, n. 1, p. 19–22, 2020. Disponível em: https://logopedia-ptl.pl/index.php/logopedia/article/view/99. Acesso em: 17 kwi. 2026.