44In accordance with well-established case-law, in order to justify refusal of access to a document the disclosure of which has been requested, it is not sufficient, in principle, for that document to be covered by an activity mentioned in Article 4(2) of Regulation No 1049/2001. The institution concerned must also supply explanations as to how access to that document could specifically and effectively undermine the interest protected by an exception laid down in that article (Sweden and Turco v Council, paragraph 49; Commission v Technische Glaswerke Ilmenau, paragraph 53; Sweden and Others v API and Commission, paragraph 72; Commission v Éditions Odile Jacob, paragraph 116; and Commission v Agrofert Holding, paragraph 57).
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