Columbia subject headings:
Harvard subject headings:
Authors--20th century--Biography--Dictionaries--German.
Literature, Modern--20th century--Bio-bibliography--Dictionaries--German.
Literature, Modern--21st century--Bio-bibliography--Dictionaries--German.
Princeton subject headings:
Authors--20th century--Biography--Dictionaries--German.
Dictionaries.
Literature, Modern--20th century--Bio-bibliography--Dictionaries--German.
Literature, Modern--21st century--Bio-bibliography--Dictionaries--German.