- Author: Gregory A. Daneke
- Language: English
- Year: 1999
- Author: Murat Koksalan, Jyrki Wallenius, Stanley Zionts
- Language: English
- Year: 2011
- Author: Martin Peterson
- Language: English
- Year: 2017
- Author: Rodgers Waymond
- Language: English
- Year: 2020
- Author: Peterson Martin
- Language: English
- Year: 2009
- Author: Branke Jürgen
- Language: English
- Year: 2008
- Author: Karakitsiou Athanasia
- Language: English
- Year: 2015
- Author: Almossawi Ali
- Language: English
- Year: 2017
- Author: Almossawi Ali
- Language: English
- Year: 2017