"Heretics" or "the faithful of the separated churches"?: Ecumenism at Vatican II and the Legacy of Religious Dialog in the Old Polish-Lithuanian Commonwealth: (16.-17 - Piotr, Wilczek, (. Jezuicka ars historica: prace ofiarowane Księdzu Profesorowi Ludwikowi Grzebieniowi SJ. - Kraków : WAM, 2001. - 702 S.. - Abb., Kt., Tab., 2001)