scientific article published on November 1, 2010

scientific article published in July 2004

scientific article published in January 2003

scientific article published on September 2007

scientific article published in June 2005

scientific article (publication date: November 2002)

scientific article

scientific article published in June 2005

scientific article

scientific article published in February 2006

scientific article published in September 2004

scientific article

scientific article published in April 2003

scientific article published in April 2006

scientific article

scientific article (publication date: 4 January 2001)

scientific article published on July 2005

scientific article published on January 1, 2003

scientific article published on January 2009

scientific article

scientific article published in July 2003

scientific article

scientific article

scientific article published on March 2010

scientific article published on October 1, 2003

scientific article published in July 2003

scientific article published on 20 May 2010

scientific article published on January 1, 2003

scientific article

scientific article published on November 1, 2003

scientific article

scientific article published in May 2004

scientific article published on March 2003