
- Author: Ekbert Hering Rolf Martin Jürgen Gutekunst Joachim Kempkes
- Language: German
- Year: 2018

- Author: Ekbert Hering Rolf Martin Jürgen Gutekunst Joachim Kempkes (eds.)
- Language: German
- Year: 2018

- Author: Ekbert Hering Rolf Martin Jürgen Gutekunst Joachim Kempkes
- Language: German
- Year: 2018

- Author: Ekbert Hering Rolf Martin Jürgen Gutekunst Joachim Kempkes (auth.)
- Language: German
- Year: 2012