Columbia subject headings:
Harvard subject headings:
Science fiction, German--Germany--Westphalia--20th century--History and criticism.
Science fiction, German--Germany--Westphalia--21st century--History and criticism.
Princeton subject headings:
Science fiction, German--Germany--Westphalia--20th century--History and criticism.
Science fiction, German--Germany--Westphalia--21st century--History and criticism.