Columbia subject headings:
Education, Higher--Germany--History--Sources.
Education, Higher--History--Sources.
Universities and colleges--Germany--History--Sources.
Universities and colleges--History--Sources.
Harvard subject headings:
Education, Higher--Germany--History--Sources.
Education, Higher--History--Sources.
Research--Germany--History--Sources.
Universities and colleges--Germany--History--Sources.
Universities and colleges--History--Sources.
Princeton subject headings:
Education, Higher--Germany--History--Sources.
Education, Higher--History--Sources.
Universities and colleges--Germany--History--Sources.
Universities and colleges--History--Sources.