Columbia subject headings:
Hungarian philology--Congresses.
Hungary--Relations--Slavic countries--Congresses.
Slavic countries--Relations--Hungary--Congresses.
Slavic philology--Congresses.
Harvard subject headings:
Hungarian philology--Congresses.
Hungary--Relations--Slavic countries--Congresses.
Slavic countries--Relations--Hungary--Congresses.
Slavic philology--Congresses.
Princeton subject headings:
Hungarian philology--Congresses.
Hungary--Relations--Slavic countries--Congresses.
Slavic countries--Relations--Hungary--Congresses.
Slavic philology--Congresses.