council decis juli conclus protocol access tunisia gener agreement tariff trade eec council european commun regard treati establish european econom commun articl thereof tunisia enter negoti european econom commun contract parti gener agreement tariff trade gatt view access agreement result negoti accept commun decid articl protocol access tunisia gener agreement tariff trade approv behalf european econom commun text protocol attach decis articl presid council author design person empow sign protocol order bind commun brussel juli council presid rubbi