++++ 1 . PROCEDURE - QUESTIONS REFERRED FOR A PRELIMINARY RULING - JURISDICTION OF THE COURT - LIMITS ( EEC TREATY, ARTICLE 177 ) 2 . COMPETITION - UNDERTAKINGS ENTRUSTED WITH THE OPERATION OF SERVICES OF GENERAL ECONOMIC INTEREST WITHIN THE MEANING OF ARTICLE 90 ( 2 ) OF THE EEC TREATY - APPLICATION OF THAT PROVISION - NO RIGHTS CONFERRED ON INDIVIDUALS IF ARTICLE 90 ( 3 ) NOT APPLIED