- Author: Freely John, Ray Kurzweil
- Language: English
- Year: 2014
- Author: Freely John
- Language: English
- Year: 2006
- Author: Freely John
- Language: English
- Year: 2011
- Author: Freely John
- Language: English
- Year: 2015
- Author: Freely John
- Language: English
- Year: 2014
- Author: Freely John
- Language: English
- Year: 2014
- Author: Freeling Paul, Freely John
- Language: English
- Year: 2010
- Author: Freely John
- Language: English
- Year: 1996
- Author: Freely John, Pfitzner Ina
- Language: German
- Year: 2014
- Author: Sino-American Cooperative Organization, Freely John
- Language: English
- Year: 2017