Columbia subject headings:
Morgenstern, Christian, 1871-1914--Literary style.
Morgenstern, Christian, 1871-1914. Galgenlieder.
Harvard subject headings:
Morgenstern, Christian, 1871-1914--Literary style.
Morgenstern, Christian, 1871-1914. Galgenlieder.
Princeton subject headings:
Morgenstern, Christian, 1871-1914--Criticism and interpretation.
Morgenstern, Christian, 1871-1914. Galgenlieder.