HELLWIG, Jan. International Newsletter for the History of Education - organ ISCHE. Biuletyn Historii Wychowania, [S. l.], n. 2, p. 39–39, 1995. DOI: 10.14746/bhw.1995.2.7. Disponível em: https://pressto.amu.edu.pl/index.php/bhw/article/view/16553. Acesso em: 22 grudz. 2024.