Since in the arbitration irrital the parts they mean entrust the referee the solution a a dispute through one instrument strictly negotiating - a a composition friendly or a shop of assessment attributable to their will - committing considering the decisive One of the referees as expression of such personal will, not is admissible the appeal per nullity a a praise, while it is essential the only action for any vices of the store, from propose with the observance of the rules ordinary on the double jurisdiction jurisdiction.