P. Czarniecki, “Eucharist with spiritual food for eternal life on the example of the teaching of St. Joseph Sebastian Pelczar”, FeR, vol. 33, no. 1, pp. 35–47, Mar. 2018, Accessed: Jul. 29, 2025. [Online]. Available: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/578