Columbia subject headings:
Harvard subject headings:
Expatriation--Germany--History--20th century.
Nomads--Germany--History--20th century.
Nomads--Germany--Social conditions--20th century.
Nomads--Political aspects--Germany--History--20th century.
Unemployment--Germany--History--20th century.
Princeton subject headings:
Fiction.
German literature--20th century--History and criticism.
German literature--20th century.
Rogues and vagabonds in art.
Rogues and vagabonds in literature.
Rogues and vagabonds--Fiction.
Tramps in art.
Tramps in literature.
Tramps--Fiction.