Columbia subject headings:
Authors, German--Contemporaries.
Authors, German--Friends and associates.
Fellowship in literature.
Friendship in literature.
German literature--History and criticism.
German literature--Themes, motives.
Intertextuality.
Harvard subject headings:
Couples in literature.
Couples--History.
German literature--History and criticism
Interpersonal relations and culture--History.
Interpersonal relations in literature.
Princeton subject headings:
Authors, German--Contemporaries.
Authors, German--Friends and associates.
Fellowship in literature.
Friendship in literature.
German literature--History and criticism.
German literature--Themes, motives.
Intertextuality.