Columbia subject headings:
Inglin, Bettina, 1896-1969--Correspondence.
Inglin, Meinrad, 1893-1971--Correspondence.
Harvard subject headings:
Authors' spouses--Switzerland--Zurich--Correspondence.
Authors, German--20th century--Correspondence
Authors, Swiss--20th century--Correspondence
Inglin, Meinrad, 1893-1971--Correspondence.
Inglin-Zweifel, Bettina, 1896-1969--Correspondence.
Love-letters--History
Violin teachers--Switzerland--Zurich--Correspondence.
Princeton subject headings:
Inglin, Bettina, 1896-1969--Correspondence.
Inglin, Meinrad, 1893-1971--Correspondence.