Drevni︠e︡ĭshii︠a︡ gramoty po istorii karpatorusskoĭ t︠s︡erkvi i ierarkhii 1391-1498 g. /
Petrov, Alekseĭ Leonidovich.
V Praze :  Nákladem Sboru pro výzkum Slovenska a Podkarpat. Rusi, 
1930.
Catholic church. Byzantine Rite (Ruthenian)