- Author: Gabriele Obst
- Language: German
- Year: 2015
- Author: Alexander Supan (editor), Erich Obst (editor)
- Language: German
- Year: 1922
- Author: Alexander Supan (editor), Erich Obst (editor)
- Language: German
- Year: 1922
- Author: Erich Obst (editor)
- Language: German
- Year: 1959
- Author: Oskar Karstedt (editor), Peter Werder (editor), Erich Obst (editor)
- Language: German
- Year: 1941
- Author: Geo A. Schmidt (editor), Erich Obst (editor)
- Language: German
- Year: 1942
- Author: Peter Mühlens (editor), Erich Obst (editor)
- Language: German
- Year: 1943
- Author: Herbert Theodor Becker (editor), Erich Obst (editor)
- Language: German
- Year: 2019