Columbia subject headings:
Catholic Church--Doctrines.
Catholic Church--Relations--Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ.
Religion and politics--Europe.
Religion and politics--Russia (Federation)
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Doctrines.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Relations--Catholic Church.
Harvard subject headings:
Catholic Church--Doctrines.
Catholic Church--Relations--Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ.
Religion and politics--Europe
Religion and politics--Russia (Federation)
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Doctrines.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Relations--Catholic Church.
Princeton subject headings: