Blažić, M. M., and J. Kovačič. “ORPHEUS FROM HELL - A Selection of Songs from the Concentration Camps Performed by Aleksander Kulisiewicz”. Angloamericanae Journal (AAJ), vol. 8, no. 1, Jan. 2023, pp. 9-49, https://aaj.ielas.org/index.php/Angloamericanae/article/view/23.