- Author: Wolfgang F Engel(Contributor)
- Language: English
- Year: 2018
- Author: Wolfgang F Engel(Editor)
- Language: English
- Year: 2018
- Author: Wolfgang F Engel
- Language: English
- Year: 2018
- Author: Wolfgang F. Engel
- Language: English
- Year: 2003
- Author: Wolfgang F. Engel
- Language: English
- Year: 2003
- Author: Wolfgang F Engel (ed.)
- Language: English
- Year: 2012
- Author: Wolfgang F Engel (ed.)
- Language: English
- Year: 2010
- Author: Wolfgang F Engel (ed.)
- Language: English
- Year: 2011
- Author: Wolfgang F Engel (ed.)
- Language: English
- Year: 2013
- Author: Wolfgang A. Engel Roman Anlanger
- Language: German
- Year: 2008