Editorial Article Sidebar pdf (Język Polski) Published: Jun 27, 2019 DOI: https://doi.org/10.18290/rped.2017.9s-1 Main Article Content Maria Loyola Opiela The John Paul II Catholic University of Lublin Andrzej Jasnos The John Paul II Catholic University of Lublin Article Details Issue Vol 9 (2017): Special Issue Section Editorials