To the+Fini+of the assessment+of the+validity+and+efficacy+of the+clause+turmoil+that+derogation+the+jurisdiction+in+favor+of+referees+foreigners,+it is necessary to first+establish+which are+the+rules+that+the+gi UDDE+MUST MUST TO APPEAR+per+such an exam;+and+in the+case+in++Le+the+applicable rules+are+foreign ones,+the+validity+of the+clause+not+it can be+to be evaluated+second+i+criteria+of which+in art.+1341+cod.+civ.