Columbia subject headings:
Historical linguistics--Romania--Congresses.
Language and languages--Variation--Congresses.
Languages in contact--Romania--Congresses.
Linguistic change--Romania--Congresses.
Standard language--Romania--Congresses.
Harvard subject headings:
Languages in contact--History.
Romance languages--History.
Romance languages--Standardization.
Princeton subject headings:
Languages in contact--History.
Romance languages--History.
Romance languages--Standardization.