Columbia subject headings:
Authors, German--19th century--Biography.
Trojan, Johannes, 1837-1915.
Harvard subject headings:
Authors, German--19th century--Biography
Editors--Germany--Biography.
Journalists--Germany--Biography
Kladderadatsch (Berlin, Germany)--History.
Trojan, Johannes, 1837-1915.
Princeton subject headings:
Authors, German--19th century--Biography.
Editors--Germany--Biography.
Journalists--Germany--Biography.
Kladderadatsch (Berlin, Germany)--History.
Trojan, Johannes, 1837-1915.