Radio M (the Netherlands) – interview ‘Geologie van de Tour de France’ Douwe J.J. van Hinsbergen Posted on June 23, 2021 by douweJune 30, 2021 scroll to 15 minutes: https://www.rtvutrecht.nl/gemist/uitzending/radiomutrecht/utrecht-komt-thuis/20210623-1800/
