Columbia subject headings:
Levison, Wilhelm, 1876-1947--Congresses.
Medievalists--Germany--Congresses.
Middle Ages--Historiography--Congresses.
Harvard subject headings:
Jewish scholars--Germany--Congresses.
Levison, Wilhelm, 1876-1947--Congresses.
Medievalists--Germany--Congresses.
Princeton subject headings:
Jewish scholars--Germany--Congresses.
Levison, Wilhelm, 1876-1947--Congresses.
Medievalists--Germany--Congresses.