scientific article published on 01 November 2003

scientific article published in September 1992

scientific article published on 01 February 1999

scientific article published on October 2011

scientific article published on 01 June 2007

scientific article published on 01 May 1996

scientific article published on 01 July 1998

scientific article published on September 2003

scientific article published on November 2003

scientific article

scientific article published on 01 June 1993

scientific article published on 19 October 2010

scientific article published in November 2000

scientific article published on February 1, 2013

scientific article published on 01 November 2003

scientific article

scientific article published in June 2001

scientific article