commiss decis march amend decis januari reorgan joint research centr jrc euratom commiss european commun regard treati establish european atom energi commun articl thereof commiss adopt decis januari reorgan joint research centr jrc decis amend novemb director gener requir deleg director establish power decentr administr decid sole articl articl ad articl decis januari quot director gener deleg respons offici establish power confer decis director gener commiss inform effect deleg quot brussel march commiss presid françoi xavier ortoli oj oj