Case C-450/17 P: Judgment of the Court (First Chamber) of 8 May 2019 — Landeskreditbank Baden-Württemberg — Förderbank v European Central Bank, European Commission (Appeal — Economic and monetary policy — Regulation (EU) No 1024/2013 — Article 6(4) — Regulation (EU) No 468/2014 — Article 70(1) — Prudential supervision of credit institutions — Tasks conferred on the European Central Bank (ECB) — Single supervisory mechanism — Performance of those tasks by the national competent authorities — ‘Less significant’ credit institution — ‘Particular circumstances’ justifying a credit institution being considered ‘less significant’)