council decis novemb conclus protocol amend gatt agreement govern procur eec council european commun regard treati establish european econom commun articl thereof regard propos commiss commun signatori gatt agreement govern procur enter negoti articl ix thereof view improv provis agreement result negoti accept commun decid articl protocol amend gatt agreement govern procur approv behalf european econom commun text protocol attach decis articl presid council author design person empow sign protocol order bind commun brussel novemb council presid simonsen oj