- Author: Dirk Schulze-Makuch, David Darling
- Language: English
- Year: 2011
- Author: Louis Neal Irwin, Dirk Schulze-Makuch
- Language: English
- Year: 2010
- Author: Mitchell Nobis, Daniel Laird, Carrie Nobis, Dawn Reed, Dirk Schulze
- Language: English
- Year: 2016
- Author: Dirk Schulze-Makuch, David Darling
- Language: English
- Year: 2011
- Author: David Darling, Dirk Schulze-Makuch
- Language: English
- Year: 2012
- Author: Dirk Schulze-Makuch William Bains
- Language: German
- Year: 2019
- Author: Dirk Schulze-Makuch Louis N. Irwin
- Language: English
- Year: 2018
- Author: Dirk Schulze-Makuch William Bains
- Language: English
- Year: 2017
- Author: Dirk Schulze-Makuch William Bains (auth.)
- Language: English
- Year: 2017
- Author: Achim Wohlgethan, Dirk Schulze
- Language: German
- Year: 2008