decis creat quot offici journal european commun quot council european econom commun regard articl treati establish european econom commun regard propos presid european parliament presid high author commiss european econom commun commiss european atom energi commun european econom commun european coal steel commun european atom energi commun joint offici journal decid creat offici journal commun mean articl treati establish european econom commun offici journal european commun brussel septemb council presid erhard