Columbia subject headings:
Books--History--400-1450--Congresses.
Libraries--Austria--Tyrol--History--Congresses.
Libraries--History--400-1400--Congresses.
Manuscripts--Congresses.
Harvard subject headings:
Books--History--400-1450--Congresses.
Libraries--Austria--Tyrol--History--Congresses.
Libraries--History--400-1400--Congresses.
Manuscripts--Congresses.
Princeton subject headings: