Provides art. 817 of the Italian Civil Code civ. Che the part, the which not oversses in the before defense subsequent to acceptance of the referees incompetenz at of these per non -existence, disability or ineffective of the convention of Arbitrage, Not Can This Reason Challenge the Louange, Salvo The Case of Controversy Not Arbitrators; While Art. 829, CO. 2, COD. Proc. Civ. a que la partie , le qui non a a excessive dans le First Instance D D IFESA ultérieure La violation de a règle que discipline la performance de la procédure arbitral, pas peut cette raison la raison le défi la louange.