conference abstract published in 2002

final contract report published in 1982

conference proceedings item published in 2004

conference proceedings item published in 2007

conference proceedings item published in 2014

conference proceedings item published in 2017

conference proceedings item published in 2018

conference proceedings item published in 2006

journal article published in 2004

conference proceedings item published in 2005

conference proceedings item published in 2005

report of investigations published in 1990

conference proceedings item published in 2008

conference proceedings item published in 1992

report of investigations published in 1985

conference proceedings item published in 2013

journal article published in 2003

publication (OP) published in 1990

report of investigations published in 1986

conference proceedings item published in 2001

conference proceedings item published in 2005

conference proceedings item published in 2012

conference proceedings item published in 1996

report of investigations published in 1994

conference proceedings item published in 2007

journal article published in 2007

publication (OP) published in 1988

book or book chapter published in 1992

report of investigations published in 1989

report of investigations published in 1985

conference proceedings item published in 2013

journal article published in 2014

journal article published in 2011

abstract published in 2000

journal article published in 2005

conference proceedings item published in 2009

journal article published in 2007

conference proceedings item published in 1999

conference proceedings item published in 2013