58First, it is established case-law that the General Court is the sole judge of any need to supplement the information available to it in respect of the cases before it. Whether or not the evidence before it is sufficient is a matter to be appraised by it alone and is not subject to review by the Court of Justice on appeal, except where that evidence has been distorted or the substantive inaccuracy of the findings of the General Court is apparent from the documents in the case (judgment in Der Grüne Punkt — Duales System Deutschland v Commission, C‑385/07 P, EU:C:2009:456, paragraph 163 and the case-law cited).
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