++++ FREEDOM OF MOVEMENT FOR PERSONS - MIGRANT WORKERS - INSURANCE - BENEFITS PAYABLE UNDER THE LEGISLATION OF A MEMBER STATE FOR INJURY SUFFERED IN THE TERRITORY OF ANOTHER STATE - RIGHT OF INSTITUTIONS LIABLE FOR PAYMENT OF BENEFIT WITH REGARD TO A THIRD PARTY ACCOUNTABLE FOR COMPENSATION - APPLICATION OF THE RELATIVE PROVISIONS ( REGULATION NO 3 OF THE COUNCIL OF THE EEC, ARTICLE 52 )