Columbia subject headings:
Harvard subject headings:
Composers--Germany--Biography--Congresses.
Hermannus, Contractus, 1013-1054--Congresses.
Monks--Germany--Biography--Congresses.
Scientists--Germany--Biography--Congresses.
Princeton subject headings:
Composers--Germany--11th century--Biography.
Hermannus, Contractus, 1013-1054.
Monks--Germany--11th century--Biography.
Scientists--Germany--11th century--Biography.