"Diplomatic relations." . . "International relations." . . "Russia" . . "Russia." . "Letters, Papal." . . "Catholic Church" . . "Catholic Church." . . . "Sources" . . . . . . . "Pisʹmo papy Pii︠a︡ Pi︠a︡togo k t︠s︡ari︠u︡ Ivanu Groznomu" . "Pisʹmo papy Pii︠a︡ V k t︠s︡ari︠u︡ Ivanu Groznomu v svi︠a︡zi s voprosom o papskikh breve ėti︠u︡d po diplomatiki︠e︡ pap" . . . . . . . . . . "Pisʹmo papy Pīi︠a︡ V k t︠s︡ari︠u︡ Ivanu Groznomu v svi︠a︡zi s voprosom o papskikh breve ėti︠u︡d po diplomatiki︠e︡ pap" . . . . . . . . "... Pisʹmo papy Pīi︠a︡ v k t︠s︡ari︠u︡ Ivanu Groznomu v svi︠a︡zi s voprosom o papskikh breve. (Ėti︠u︡d po diplomatiki︠e︠ pap)" . . . "Pisʹmo papy Pīi︠a︡ V k t︠s︡ari︠u︡ Ivanu Groznomu v svi︠a︡zi s voprosom o papskikh breve : ėti︠u︡d po diplomatiki︠e︡ pap" . . . "Pismo papy Piia V k tsariu Ivanu Groznomu v sviazi s voprosom o papskikh breve : etiud po diplomatikie pap" . . . . "Soviet Union" . . . .