Zydek, S. 2020. The Role and Importance of the Eucharistic Crusade and the Sodality of Our Lady in the Process of Religious Education according to St Ursula Ledóchowska (1865-1939). Paedagogia Christiana. 46, 2 (Dec. 2020), 189–204. DOI:https://doi.org/10.12775/Pch.2020.025.