The obligation of exposure summary of the reasons of the decision imposed to referees by art. 823, n. 5, cod. Proc. Civ., The which is missing fulfillment integrates the possibility of challenge the pit ai senses of art. 829, first paragraph, nn. 4 and 5 cod. proc. civ., can be considered not satisfied only qu Ando The Motivation Manchi of the All or Sia so low by not not to allow understand the logical process which has determined the decision referee or contain contradictions irreconcilable in the body of the motivation or device such to make incomprehensible the ratio of the decision.