Columbia subject headings:
Architecture, Medieval--Russia--History--Congresses.
Church architecture--Russia--History--Congresses.
Rappoport, P. A. (Pavel Aleksandrovich)--Congresses.
Harvard subject headings:
Architecture, Medieval--Russia (Federation)--Congresses.
Architecture--Russia (Federation)--Congresses.
Church architecture--Russia (Federation)--Congresses.
Rappoport, P. A. (Pavel Aleksandrovich)
Princeton subject headings:
Architecture, Medieval--Russia--Congresses.
Architecture--Russia--Congresses.
Church architecture--Russia--Congresses.