Columbia subject headings:
Bologna (Italy)--Intellectual life--Congresses.
Jews--Italy--Bologna--Intellectual life--Congresses.
Harvard subject headings:
Bologna (Italy)--Ethnic relations--Congresses.
Bologna (Italy)--Intellectual life--Congresses.
Jews--Italy--Bologna--History--Congresses.
Princeton subject headings:
Bologna (Italy)--Intellectual life--Congresses.
Jews--Italy--Bologna--Intellectual life--Congresses.