http://www.redbull.com/it/it/bike/stories/1331849431364/mtb-guida-pratica-ode-al-trail-building
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http://www.solobike.it/sbk/news/-Trail-Building-School-IMBA-Italia%26%238232%3B-22-23-Aprile,-Val-Sole
European MTB Survey – MTBCult
http://www.solobike.it/mountain-bike/news/Sondaggio-IMBA-Europa-sulle-abitudini-dei-MTBiker
