If+in+a+contract+tender+stipulated+A+followed+of+tender+tender+per+lactation+private+launched+from+administration+public,+the+parts+have+express+express+recall,+which+part+i+i Norgorante+of the+contract,+at+rules+of the+specifications+general+per+le+works+public,+between+the+which are++those+those related+to+competence+referee+per+the+definition+of the+disputes,+ Not+VI+is+need+a+a+separate+clause+bossial,+place+that+the+will+of the+contractors+find+already+its+expression+in the+call+pact,+so+the+source+of the+competence+arbitration+v A+identified+not+in the+law,+but+in+a+convention+compromise.+not+it is+however sufficient+a+recall+merely+formal+at the+specifications+which+provides+possibly+the+clause+compromise.