1. Swi-prolog (1987).
http://www.swi-prolog.org/
2. Netbeans (1999).
http://www.netbeans.org/
3. Eclipse (2003).
http://www.eclipse.org/
4. Omnicore codeguide (2007).
http://www.omnicore.com/en/codeguide.htm
5. Borland JBuilder (2008).
http://www.embarcadero.com/products/jbuilder/