KHANNANOV, I. D. Existential Signification: The Abyss between Chopin’s Op. 6 No. 1 and Op. 68 No. 4. Music Scholarship / Problemy Muzykal’noj Nauki, [S. l.], n. 2, p. 18–26, 2010. Disponível em: https://musicscholar.ru/index.php/PMN/article/view/545. Acesso em: 3 jul. 2024.