- Author: Natalie Mychajlyszyn, Harald von Riekhoff, Harald Von Riekhoff
- Language: English
- Year: 2004
- Author: Hans Delbruck
- Language: English
- Year: 1985
- Author: Thomas G. Mitchell
- Language: English
- Year: 2000
- Author: Margaret S. Chrisawn
- Language: English
- Year: 2001
- Author: David M. Toczek
- Language: English
- Year: 2001
- Author: Lee W. Eysturlid
- Language: English
- Year: 2000
- Author: Bilveer Singh
- Language: English
- Year: 2002
- Author: Benjamin Rhodes
- Language: English
- Year: 1988
- Author: Bilveer Singh
- Language: English
- Year: 2002