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18/02/2015 IMBA Europe – http://www.imba-europe.org/events/trail-building-school-porretta-terme
31/08/2014 – Bicilive – Primo meeting IMBA Italia
https://www.365mountainbike.com/news-mtb/1919-3-trail-building-school-imba-italia-in-val-di-sole.html