“ This will be implemented through the mutual concession of the rights which citizens of European Community countries enjoy, taking into account the transitional periods and derogations agreed between Spain and the Community. The necessary legislative proposals to achieve this will be introduced in Spain and Gibraltar. As concerns paid employment, and recalling the general principle of Community preference, this carries the implication that during the transitional period each side will be favourably disposed to each other's citizens when granting work permits. ”