Columbia subject headings:
Harvard subject headings:
Bauer, Bruno, 1809-1882--Congresses.
Bauer, Bruno, 1809-1882--Criticism and interpretation--Congresses.
Philosophy, German--19th century--Congresses.
Theology--Germany--History--19th century--Congresses.
Princeton subject headings:
Bauer, Bruno, 1809-1882--Congresses.