- Author: Mark Connelly, Jo Fox, Ulf Schmidt, Stefan Goebel (eds.)
- Language: English
- Year: 2019
- Author: Kosieradzki Michał, Schmidt Stefan
- Language: Polish
- Year: 1959
- Author: Jonas Wayne B., Walach Harald, Schmidt Stefan
- Language: English
- Year: 2011
- Author: Mirko HH Schmidt Stefan Liebner (eds.)
- Language: English
- Year: 2015
- Author: Ulrich Schmidt Stefan Traub
- Language: English
- Year: 2005
- Author: Ulrich U. Schmidt Stefan Traub
- Language: English
- Year: 2007