Columbia subject headings:
Harvard subject headings:
Feminism--Germany--History--Congresses.
Vorwerk, Anna, 1839-1900--Congresses.
Women in education--Germany--History--Congresses.
Women--Education--Germany--History--Congresses.
Princeton subject headings:
Vorwerk, Anna, 1839-1900--Congresses.
Women in education--Germany--Congresses.
Women--Education--Germany--Congresses.