- Author: Eugen Lozovan, Ruth Stiehl, Erika Trautmann-Nehring
- Language: German
- Year: 1975
- Author: Olof Gigon, Denes Kövendi, Eugen Lozovan, Joachim Rehork, Hans N. Roisl, Emmerich Schaffran, Erika Trautmann-Nehring, Ruth Stiehl
- Language: German
- Year: 1962
- Author: Zelik I. Jampolski, Eugen Lozovan, Feodora v. Sachsen-Meiningen, Erika Trautmann-Nehring, Ruth Stiehl
- Language: German
- Year: 1969