Columbia subject headings:
Authors, German--20th century--Biography--Dictionaries.
Authors, German--Germany (East)--Biography--Dictionaries.
Science fiction, German--Germany (East)--History and criticism.
Harvard subject headings:
Authors, German--20th century--Biography--Dictionaries.
Authors, German--Germany (East)--Biography--Dictionaries.
Literary form.
Science fiction, German--Germany (East)--History and criticism.
Princeton subject headings:
Authors, German--20th century--Biography--Dictionaries.
Authors, German--Germany (East)--Biography--Dictionaries.
Dictionaries.
Science fiction, German--Germany (East)--History and criticism.