
- Author: William Gropp, Ewing Lusk, Anthony Skjellum, Holger Blaar, Paul Molitor
- Language: German
- Year: 2007

- Author: William Gropp Ewing Lusk Anthony Skjellum
- Language: English
- Year: 2014

- Author: William Gropp Ewing L. Lusk Anthony Skjellum Rajeev Thakur
- Language: English
- Year: 1999

- Author: William Gropp Ewing Lusk Anthony Skjellum
- Language: English
- Year: 1999