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http://www.mtb-mag.com/un-successo-il-primo-corso-imba-di-trailbuilding/
https://www.imba.com/blog/mark-mcclure/imba-italia-trail-building-school
01/09/2014 – SingleTrack Torino – Primo meeting IMBA Italia a Porretta Terme by Happy Trail
18/02/2015 IMBA Europe – http://www.imba-europe.org/events/trail-building-school-porretta-terme
