scientific article published in November 2002

scientific article

scientific article published in February 2004

scientific article

scientific article published in September 2003

scientific article

scientific article published in February 2003

scientific article

scientific article published in December 2003

scientific article

scientific article

scientific article published in August 2005

scientific article published on 11 October 2004

scientific article published in October 2004

scientific article published in April 2003

scientific article published in September 2004

scientific article published in September 2002

scientific article published in December 2004

scientific article published in March 2004

scientific article published in July 2003

scientific article