Columbia subject headings:
Harvard subject headings:
German language--Dialects--Germany--Oberpfalz--Diphthongs.
Schönwerth, Franz Xaver von, 1809-1886
Princeton subject headings:
German language--Dialects--Germany--Oberpfalz.
German language--Diphthongs.
Schönwerth, Franz Xaver von, 1809-1886.