Leblanc, Hélène. “The Semiotic Foundation of Ingarden’s Analysis of Music . 173”. In Roman Ingarden and His Times, edited byDominika Czakon, Natalia Anna Michna, and Leszek Sosnowski. Poland: Księgarnia Akademicka Publishing, 2020. Accessed June 30, 2025. https://books.akademicka.pl/publishing/catalog/book/83/chapter/1067.