translate English to French: However, the freedom to provide services, as one of the fundamental principles of the Treaty, may be restricted only by provisions which are justified by the general good and which are applied to all persons or undertakings operating within the territory of the State in which the service is provided in so far as that interest is not safeguarded by the provisions to which the provider of a service is subject in the Member State of his establishment.
La Cour a cependant admis, notamment dans ses arrêts du 18 janvier 1979 (van Wesemael, 110 et 111/78, Rec. p.