scientific article published on 23 February 2009

scientific article published in November 2004

scientific article published in September 2005

scientific article

scientific article

scientific article published on 9 April 2004

scientific article published in January 2003

scientific article published in November 2004

scientific article

scientific article published in September 2003

scientific article published in December 2004

scientific article

scientific article published on 01 November 2004

scientific article published in March 2005

scientific article published on September 2003

scientific article published in August 2002

scientific article published in January 2004

scientific article published in January 2004

scientific article published on February 2005

scientific article (publication date: April 2003)

scientific article