Columbia subject headings:
Harvard subject headings:
Bologna (Italy)--Antiquities--Congresses.
Bologna (Italy)--Civilization--Congresses.
Bologna (Italy)--History--Congresses.
Università di Bologna--Congresses.
Università di Bologna--History--Congresses.
Universities and colleges--Italy--Bologna--History--Congresses.
Princeton subject headings:
Bologna (Italy)--Antiquities--Congresses.
Bologna (Italy)--Historiography--Congresses.
Bologna (Italy)--Intellectual life--Congresses.
Università di Bologna--History--Congresses.