1 . SOCIAL SECURITY FOR MIGRANT WORKERS - COMMUNITY RULES - TO TAKE PRECEDENCE OVER THE EUROPEAN INTERIM AGREEMENT ON SOCIAL SECURITY SCHEMES - CONDITIONS ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 7 ( 1 ) ( B )) 2 . SOCIAL SECURITY FOR MIGRANT WORKERS - COMMUNITY RULES - SCOPE - MEMBERS OF THE FAMILY OF A WORKER - RELATIVES IN THE ASCENDING LINE - SPECIAL OLD-AGE ALLOWANCE - REGULATION NO 1408/71 - NOT APPLICABLE ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 2 ( 1 )) 3 . FREE MOVEMENT OF PERSONS - WORKERS - EQUALITY OF TREATMENT - SOCIAL ADVANTAGE - DEFINITION - SPECIAL OLD-AGE ALLOWANCE GUARANTEEING A MINIMUM INCOME - GRANT TO NATIONALS OF OTHER MEMBER STATES - REQUIREMENT OF A PERIOD OF RESIDENCE - NOT PERMISSIBLE ( REGULATION NO 1612/68 OF THE COUNCIL , ART . 7 ( 2 ))