https://www.pinkbike.com/news/riva-del-garda-will-host-the-2018-imba-italia-trail-building-school.html
Potrebbe anche interessarti
https://www.imba-europe.org/events/4th-consecutive-italian-trail-building-school-riva-del-garda
http://4guimp.it/2016/02/10/4guimp-affianca-imba-italia/
http://mountainbikeworld.it/attualita/2015/04/01/cura-dei-sentieri-e-territorio-questionario-imba-europe/
http://www.cosafareintrentino.it/it/evento/tbs-trail-building-school