45Applying that case-law, the Court has repeatedly held that it has jurisdiction to give preliminary rulings on questions concerning EU provisions in situations where the facts of the cases being considered by the national courts were outside the scope of EU law but where those provisions had been rendered applicable by domestic law due to a reference made by that law to the content of those provisions. In that case, even though the facts of the main proceedings were outside the direct scope of EU law, the provisions of EU law had been made applicable by national legislation, which, in dealing with purely internal situations, follows the same approach as that provided for by EU law (see, to that effect, judgments of 18 October 1990, Dzodzi, C‑297/88 and C‑197/89, EU:C:1990:360, paragraph 37; of 17 July 1997, Leur-Bloem, C‑28/95, EU:C:1997:369, paragraphs 27 and 32; and of 15 November 2016, Ullens de Schooten, C‑268/15, EU:C:2016:874, paragraph 53).
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