With+reference+a+disputes+which+they had+start+first+of the entrance+in+vigor+of the+reform+operated,+in+material+reform,+from+l.+2+February+2006,+n.+40,+and+therefore before the introduction+of art.+808-quater+cod.+Proc.+Civ. ncipio+in+dubio+pro+arbitration,+finds+application+the+principle+opposite,+per+to which+the+clauses+compromise+must be+interpreted+in+sense+restrictive+e,+in+case+doubt+on+competence+referee,+si+imposes+the most prevalent+of the+judge+ordinary.