Columbia subject headings:
French language--Dialects--France--Montbéliard.
French language--Foreign elements--German.
German language--Dialects--Germany--Württemberg.
German language--Foreign elements--French.
Harvard subject headings:
French language--Dialects--France--Montbéliard.
French language--Foreign elements--German
German language--Dialects--Germany--Württemberg.
German language--Foreign elements--French
Princeton subject headings:
French language--Dialects--France--Montbéliard.
French language--Foreign elements--German.
German language--Dialects--Germany--Württemberg.
German language--Foreign elements--French.