BURKOT, S. Tajemnice Ludwika Spitznagla. Annales Universitatis Paedagogicae Cracoviensis. Studia Poetica, [S. l.], v. 4, p. 6–24, 2017. Disponível em: https://studiapoetica.uken.krakow.pl/article/view/3441. Acesso em: 1 maj. 2024.