Columbia subject headings:
Harvard subject headings:
Authors, German--19th century--Correspondence
Authors, German--20th century--Correspondence
Liliencron, Detlev von, 1844-1909--Correspondence.
Nöthig, Theobald, 1841-1925--Correspondence.
Princeton subject headings:
Authors, German--19th century--Correspondence.
Authors, German--20th century--Correspondence.
Liliencron, Detlev von, 1844-1909--Correspondence.
Nöthig, Theobald, 1841-1925--Correspondence.