Columbia subject headings:
Authors, German--19th century--Correspondence.
Authors, German--20th century--Correspondence.
Historians--Germany--Correspondence.
Thimme, Friedrich, 1868-1938--Correspondence.
Harvard subject headings:
Authors, German--19th century--Correspondence
Authors, German--20th century--Correspondence
Historians--Germany--Correspondence
Thimme, Friedrich Wilhelm Karl, 1868-1938--Correspondence.
Princeton subject headings:
Authors, German--19th century--Correspondence.
Authors, German--20th century--Correspondence.
Historians--Germany--Correspondence.
Thimme, Friedrich, 1868-1938--Correspondence.