Columbia subject headings:
Harvard subject headings:
Milan (Italy)--Church history--Congresses.
Monastero di S. Ambrogio (Milan, Italy)--Congresses.
Monasticism and religious orders--Italy--Milan--History--Middle Ages, 600-1500--Congresses.
Princeton subject headings:
Milan (Italy)--Church history--Congresses.
Monastero di S. Ambrogio (Milan, Italy)--History--Congresses.