Columbia subject headings:
Harvard subject headings:
Cousins--Germany.
German literature--20th century--History and criticism
Halben, Johannes, 1895-1916--Correspondence.
Halben, Johannes, 1896-1916--Diaries.
Koeppen, Wolfgang, 1906-1996. Romanisches Café.
Soldiers--Germany--Correspondence
Soldiers--Germany--Diaries
World War, 1914-1918--Sources
Princeton subject headings:
Cousins--Germany.
German literature--20th century--History and criticism.
Halben, Johannes, 1895-1916--Correspondence.
Halben, Johannes, 1896-1916--Diaries.
Koeppen, Wolfgang, 1906-1996. Romanisches Café.
Soldiers--Germany--Correspondence.
Soldiers--Germany--Diaries.
World War, 1914-1918--Sources.