• How the World's Most Difficult Bouldering Problems Get Made (2015) https://www.outsideonline.com/2017711/path-beta-flash-resistance-route-setters 70 comments 18/11/2018
• How the World's Most Difficult Bouldering Problems Get Made http://www.outsideonline.com/2017711/path-beta-flash-resistance-route-setters 58 comments 6/10/2015

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