Better highways through applied geology : 69th Highway Geology Symposium (HGS 2018) : Portland, Maine, USA, 10-13 September 2018

Annual Highway Geology Symposium | TIBKAT | 2019

Better highways through applied geology : 70th Highway Geology Symposium (HGS 2019) : Portland, Oregon, USA, 21-24 October 2019

Highway Geology Symposium | TIBKAT | 2020

Better highways through applied geology : 71st Highway Geology Symposium (HGS 2022) : Asheville, North Carolina, USA, 23-25 May 2022

Highway Geology Symposium | TIBKAT | 2022

Better highways through applied geology : 62nd Annual HGS ; 62nd Highway Geology Symposium ; Lexington, Kentucky, July 25th - 28th, 2011 ; proceedings

Kentucky Geological Survey | TIBKAT | 2011

Better highways through applied geology : 63rd Annual Highway Geology Symposium 2012 (HGS 2012) ; Redding, California, USA, 7 - 10 May 2012

Kalifornien, Department of Transportation / California Geological Survey | TIBKAT | 2013