scientific article published on 25 July 2002

scientific article published on 25 July 2002

scientific article published on 25 July 2002

scientific article published on 25 July 2002

scientific article published on 25 July 2002

scientific article published on 30 April 2003

scientific article published on 26 July 2002

scientific article published on 25 July 2002

scientific article published on 23 April 2003

scientific article published on 25 July 2002

scientific article published on 25 July 2002

scientific article published on 25 July 2002

scientific article published on 25 July 2002

scientific article published on 25 July 2002

scientific article published on 4 March 2003

scientific article published on 25 July 2002

scientific article (publication date: November 1979)

scientific article published on 30 April 2003

scientific article published on 25 July 2002

scientific article published on 25 July 2002