https://www.365mountainbike.com/news-mtb/1919-3-trail-building-school-imba-italia-in-val-di-sole.html
Potrebbe anche interessarti
25/02/2015 – MTB Cult – http://www.mtbcult.it/42549/nasce-imba-italia-per-rendere-la-mtb-accessibile-a-tutti/
25/02/2015 – MTB MAG – http://www.mtb-mag.com/imba-italia-corso-di-trailbuilding/
http://mountainbikeworld.it/attualita/2016/02/09/corsi-di-formazione-trail-building-imba-a-meta-aprile/
http://www.4actionsport.it/eventi/2017/01/31/news/imba-italia-organizza-la-terza-trail-building-school-in-val-di-sole-200671/