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 to integrates the possibility of challenge the praise ai senses of art. 829, co. 1, nn. 4 and 5 cod. proc. civ., can be considered not satisfied only O the motivation miss of the all or is so much deficient from not not to allow understand the logical process that has determined the decision referee or contain contradictions irreconcilable in the body of the motivation or of the device such to make incomprehensible the ratio of the decision.