CHŁOPICKA, Regina. Krzysztof Penderecki’s Eighth Symphony, ‘Lieder der Vergänglichkeit’ - from inspiration by nature to existential reflection. Interdisciplinary Studies in Musicology, [S. l.], n. 8, p. 189–202, 2018. Disponível em: https://pressto.amu.edu.pl/index.php/ism/article/view/14913. Acesso em: 7 grudz. 2023.