Columbia subject headings:
Cologne (Germany). Tricoronatum.
Music--Germany--Cologne.
Universität zu Köln.
Harvard subject headings:
Cologne (Germany). Tricoronatum.
Music--Germany--Cologne.
Universität zu Köln.
Princeton subject headings:
Cologne (Germany). Tricoronatum.
Music--Germany--Cologne.
Universität zu Köln.