Helmcke, William M. 2018. “At the ‘Crux’ of Henryk Gorecki’s Totus Tuus, Op. 60: Signification of Polish Catholic Marian Devotion”. Interdisciplinary Studies in Musicology, no. 14 (October):136-50. https://pressto.amu.edu.pl/index.php/ism/article/view/15343.