Unitatis reintegratio, 1964-1974 : the impact of the decree on ecumenism / edited by Gerard Bekes and Vilmos Vajta. - Békés, Gellert, O.S.B., 1915- (OLS)http://pul/name/2790; Vajta, Vilmos. (OLS)http://pul/name/2791 (Ed. Anselmiana, 1977)