Boysak, Basil.
Ecumenism and Manuel Michael Olshavsky, Bishop of Mukachevo (1743-1767): analysis of the "Sermo de Unione" /
. - Montrǎl : Faculty of Theology, University of Montrǎl, 1967
. - xxii, 233 p. ill., map, ports. 23 cm.
- (Theologia Montis Regii ; 49 )
First published as thesis, Montreal, under title: Manuel Michael Olshavsky, Bishop of Mukachevo (1743-1767), and the unity of the Church in Carpatho-Ukraine. "Sermo de sacra occidentalem inter et orientalem Ecclesiam Unione," by M. M. Ol'shavs'kyi: p. 203-228..
К.: Бібліогр. : с. iv-xix