http://www.imba-europe.org/events/trail-building-school-val-di-sole
Archivi Giornalieri: 7 Febbraio 2017
4 articoli
http://www.valdisole.net/IT/Trail-Building-School/
https://www.visittrentino.it/it/guida/eventi/trail-building-school-val-di-sole_e_998255
http://cycletimes.net/val-di-sole-to-host-imba-italia-trail-building-school/