- Author: Craig Morris
- Language: English
- Year: 2006
- Author: National Academy of Engineering, H. Dale Langford, Jesse H. Ausubel, H.Dale Langford
- Language: English
- Year: 1997
- Author: Mogens Rüdiger
- Language: English
- Year: 2008
- Author: Rifkin Jeremy
- Language: English
- Year: 2011
- Author: Butler Tom, Wuerthner George
- Language: English
- Year: 2012