Knowledge Based Systems, Volume 22

Volume 22, Number 1, January 2009

Volume 22, Number 2, March 2009

Volume 22, Number 3, April 2009

Volume 22, Number 4, May 2009

Guest Editorial Special Issue Papers

Volume 22, Number 5, July 2009

Research Articles Short Communications

Volume 22, Number 6, August 2009

Volume 22, Number 7, October 2009

Volume 22, Number 8, December 2009