Harkavyy, Oleh. “Oleh Harkavyy’s Lux Aeterna (2018) in "Light" Of the Enlightenment”. Journal of the International Society for Orthodox Music 4, no. 1 (June 5, 2020): 109–117. Accessed October 27, 2020. https://journal.fi/jisocm/article/view/89425.