- Author: J. A. Mandel, H. Steudel, A. Massazza
- Language: Italian
- Year: 2022
- Author: J. A. Mandel, H. Steudel
- Language: German
- Year: 1921
- Author: Ralf Steudel
- Language: German
- Year: 2013
- Author: J. A. Mandel, H. Steudel
- Language: German
- Year: 1924
- Author: Joh. Christian Friedr. Steudel (editor), Gust. Friedr. Oehler (editor)
- Language: German
- Year: 1840
- Author: Ralf Steudel, Ingo Krossing, Yana Steudel
- Language: German
- Year: 2008
- Author: Ralf Steudel
- Language: German
- Year: 1974
Symmetrie von Molekülen: Eine Einführung in die Anwendung von Symmetriebetrachtungen in der Chemie
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- Author: Michael J. Hollas, Ralf Steudel, Ralf Steudel
- Language: German
- Year: 1975