1 . SOCIAL SECURITY FOR MIGRANT WORKERS - UNEMPLOYMENT - COMMUNITY RULES - OBJECTS ( REGULATION NO 1408/71 OF THE COUNCIL ) 2 . SOCIAL SECURITY FOR MIGRANT WORKERS - UNEMPLOYMENT - BENEFITS - CALCULATION - PREVIOUS WAGE OR SALARY - CONCEPT - ACTUAL OR NOTIONAL WAGE OR SALARY IN THE LAST EMPLOYMENT ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 68 ( 1 )) 3 . SOCIAL SECURITY FOR MIGRANT WORKERS - UNEMPLOYMENT - BENEFITS - CALCULATION - PREVIOUS WAGE OR SALARY - FRONTIER WORKERS - WAGE OR SALARY RECEIVED IN THE EMPLOYMENT HELD IMMEDIATELY PRIOR TO THE UNEMPLOYMENT ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 68 ( 1 ))