https://www.365mountainbike.com/news-mtb/1919-3-trail-building-school-imba-italia-in-val-di-sole.html
Potrebbe anche interessarti
https://www.imba-europe.org/events/4th-consecutive-italian-trail-building-school-riva-del-garda
http://news.cycling.it/news_d.asp?out_param=cyclingit/news/02/10/2016/La%20sede%20e%20Torino%20due%20giorni%20di%20lavoro&id=13490
5° Trail Building School IMBA Italia a Il Ciocco
http://www.pinkbike.com/news/val-di-sole-to-host-imba-italia-trail-building-school-2017.html