Columbia subject headings:
Germany--Historiography--Congresses.
Intellectual freedom--Germany--Congresses.
Intellectual freedom--Netherlands--Congresses.
Netherlands--Historiography--Congresses.
Political correctness--Germany--Congresses.
Political correctness--Netherlands--Congresses.
Harvard subject headings:
Germany--Historiography--Congresses.
Intellectual freedom--Germany--Congresses.
Intellectual freedom--Netherlands--Congresses.
Netherlands--Historiography--Congresses.
Political correctness--Germany--Congresses.
Political correctness--Netherlands--Congresses.
Princeton subject headings:
Germany--Historiography--Congresses.
Intellectual freedom--Germany--Congresses.
Intellectual freedom--Netherlands--Congresses.
Netherlands--Historiography--Congresses.
Political correctness--Germany--Congresses.
Political correctness--Netherlands--Congresses.