commiss decis juli lai method cooper eurpean econom commun intern commiss civil statu eec commiss european commun regard treati establish european econom commun articl thereof european commun establish relat numer intern organ agreement conclud commiss concern work relat european commun intern organ establish system cooper design ensur smooth function european econom commun intern commiss civil statu common interest numer area approxim law notabl sector famili law law civil statu legal capac individu advis lai method cooper organ adopt decis sole articl agreement method cooper result exchang letter european econom commun intern commiss civil statu approv brussel juli commiss karl heinz narj member commiss