BORCHARDT, Marcin. 4’33" Dźwięki ciszy. Er(r)go. Teoria - Literatura - Kultura, [S. l.], v. 2, n. 33, 2016. Disponível em: https://journals.us.edu.pl/index.php/ERRGO/article/view/4125. Acesso em: 5 grudz. 2025.