Columbia subject headings:
Feoktistov, A. P.--Congresses.
Finno-Ugric languages--Russia (Federation)--Mordovii︠a︡--Congresses.
Mordvin language--Congresses.
Philologists--Russia (Federation)--Mordovii︠a︡--Congresses.
Harvard subject headings:
Feoktistov, A. P.--Congresses.
Finno-Ugric languages--Russia (Federation)--Mordovii︠a︡--Congresses.
Mordvin language--Congresses.
Philologists--Russia (Federation)--Mordovii︠a︡--Congresses.
Princeton subject headings: