1 . QUESTIONS REFERRED FOR A PRELIMINARY RULING - JURISDICTION OF THE COURT - LIMITS - RELEVANCE OF THE QUESTIONS ASKED - DISCRETION - NONE ( EEC TREATY , ART . 177 ) 2 . SOCIAL SECURITY FOR MIGRANT WORKERS - BENEFITS - PAYMENT ON A PROVISIONAL BASIS - RIGHT OF APPEAL OF THOSE CONCERNED - SCOPE ( REGULATION NO 574/72 OF THE COUNCIL , ART . 45 ( 4 ))