- Author: Donna L. Mohr, Rudolf Jakob Freund, William J. Wilson, Rudolf Jakob Freund
- Language: English
- Year: 2022
- Author: Rudolf J. Freund William J. Wilson Ping Sa
- Language: English
- Year: 2006
- Author: Rudolf J. Freund William J. Wilson
- Language: English
- Year: 2003
- Author: Rudolf J. Freund William J. Wilson
- Language: English
- Year: 2003
