council decis juli conclus agreement spain negoti articl xix gatt eec council european commun regard treati establish european econom commun articl thereof regard report commiss accord articl xix gener agreement tariff trade spanish govern temporarili modifi concess affect european econom commun modif subject negoti compensatori adjust concess offer spain compens modif satisfactori decid articl agreement negoti spain articl xix gener agreement tariff trade conclud behalf european econom commun text agreement annex decis articl contract parti gener agreement tariff trade notifi conclus agreement brussel juli council presid scheel annex