Wilczek, Cezary. “Anxiety Level and Basic Hope in Participants to Eight-Day-Long ‘ignatian’ Retreats”. Studia Psychologica: Theoria et praxis, no. 9 (August 27, 2009): 125–137. Accessed March 29, 2024. https://czasopisma.uksw.edu.pl/index.php/sp/article/view/2711.