Supičić, Ivo. “The Aesthetic of Stjepan Šulek (A Synthetic Survey of His Basic Conceptions)”. Musicological Annual 5, no. 1 (December 1, 1969): 101–110. Accessed July 30, 2021. https://revije.ff.uni-lj.si/MuzikoloskiZbornik/article/view/4716.