Columbia subject headings:
Harvard subject headings:
European literature--20th century--History and criticism.
European periodicals--History--20th century.
European poetry--20th century--History and criticism.
Literature and science--Europe--Congresses.
Literature and technology--Europe--Congresses.
Literature--Europe--Periodicals.
Literature--Periodicals--History--20th century--Congresses.
Science--Europe--Periodicals.
Princeton subject headings:
European literature--20th century--History and criticism--Periodicals.
European periodicals--History--20th century.
European poetry--20th century--History and criticism--Periodicals.
Periodicals.
Science--Europe--Periodicals.