Columbia subject headings:
Authorship--Collaboration--Case studies.
German philology--History.
Intellectual cooperation--History.
Interdisciplinary approach to knowledge--History.
Philologists--Germany--Biography--Anecdotes.
Harvard subject headings:
Cooperation literature--Case studies.
Humanity in literature--Case studies.
Princeton subject headings:
Authorship--Collaboration--Case studies.
German philology--History.
Intellectual cooperation--History.
Interdisciplinary approach to knowledge--History.
Philologists--Germany--Biography--Anecdotes.