conference proceedings item published in 1991

conference proceedings item published in 2012

journal article published in 2015

journal article published in 1991

journal article published in 2014

publication (OP) published in 1989

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conference proceedings item published in 2015

journal article published in 2015

journal article published in 2014

journal article published in 2010

conference proceedings item published in 2009

journal article published in 2017

journal article published in 2018

journal article published in February 2018

conference proceedings item published in 2016

conference proceedings item published in February 2016

conference proceedings item published in 2017

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conference proceedings item published in 2010