https://agendadegliappunti.wordpress.com/2018/02/16/trail-building-school-imba-garda-trentino/
Potrebbe anche interessarti
https://www.365mountainbike.com/news-mtb/1919-3-trail-building-school-imba-italia-in-val-di-sole.html
http://www.savonanews.it/2018/02/21/leggi-notizia/argomenti/finalese/articolo/la-international-mountain-bicycling-association-sbarca-a-finale-per-un-workshop-1.html
http://www.valdisole.net/IT/Trail-Building-School/