Krylova, Alexandra V. “The New Ideology of Musical Theater and Its Manifestation in the Works of Heiner Goebbels”. Music Scholarship / Problemy Muzykal’noj Nauki, no. 4 (December 18, 2019): 225–234. Accessed July 3, 2024. https://musicscholar.ru/index.php/PMN/article/view/1098.