44As regards, thirdly, the question whether the legislation at issue in the main proceedings is necessary in order to attain the aim pursued, it must be noted that, while the maintenance of pluralism, through a cultural policy, is connected with the fundamental right of freedom of expression and, accordingly, that the national authorities have a wide margin of discretion in that regard, the requirements imposed under measures designed to implement such a policy must in no case be disproportionate in relation to that aim and the manner in which they are applied must not bring about discrimination against nationals of other Member States (see, to that effect, Case C-379/87 Groener [1989] ECR 3967, paragraph 19, and Case C-112/00 Schmidberger [2003] ECR I-5659, paragraph 82).
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