scientific article published in March 2002

scientific article published on 01 October 1997

scientific article

scientific article

scientific article published on March 1, 1998

scientific article

scientific article published on April 1, 1992

scientific article published in March 1997

scientific article published on September 1993

scientific article published on January 1995

scientific article published on 01 February 1986

scientific article published on 01 June 2003

scientific article published in October 1995

scientific article published on September 1, 1992

scientific article

scientific article published on 01 May 1995

scientific article published on May 1995