Analysis of information sources in references of the Wikipedia article "Rock climbing" in English language version.
Bolt Wars
the sport of climbing on rocks or in mountains, or on specially designed walls inside or outdoors
{{cite web}}: CS1 maint: multiple names: authors list (link)Roughly from 1986 to 1993, Armando Menocal was one of the founders and de facto leader of the nascent Access Fund. It is hard to imagine where climbing would be today without him. He fought for climbers' rights, and though he wasn't a fan of bolts he believed the government shouldn't dictate how or where climbers place them. When government agencies tried to ban bolts, Armando stood in their way.
Statement of Youth: The Birth of British Sport Climbing
the sport of climbing on rocks or in mountains, or on specially designed walls inside or outdoors
{{cite web}}: CS1 maint: multiple names: authors list (link)Bolt Wars