Tsmur, Ihor. “Dmitry Bortniansky. Choral Concert № 34 (Some Performing and Conductor’s Problems)”. Pedagogical Discourse0, no. 14 (February 4, 2013): 448-453. Accessed May 4, 2024. http://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/520.