Rebaptism, name-giving and identity among nobles of Ruthenian origin in late medieval Galicia - Zazuljak, Jurìj (. On the frontier of Latin Europe. - Warschau : Inst. of Archaeology and Ethnology of the Polish Acad. of Sciences, 2004. - 242 S.. - Kt.. - ISBN 83-89499-17-7, 2004)