scientific article published in July 2001

scientific article published in August 2009

scientific article published in August 2009

scientific article published in October 1996

scientific article published in December 1997

scientific article published in August 2019

scientific article published in May 1998

scientific article published in July 1995

scientific article published in December 2006

scientific article published in March 2008

scientific article published in September 2020

scientific article published in April 2001

scientific article published in September 1993

scientific article published in March 2018

scientific article published in June 2005

scientific article published in July 1995

scientific article published in November 2004

scientific article published in July 1997

scientific article published in May 1998