Colloquium of the Network (Karlsruhe, 27 and 28 September 2018): "The relationship between constitutional courts and supreme courts". Speech of Koen Lenaerts, President of the Court of Justice of the European Union, on the occasion of the Meeting of the Network of the Presidents of the Supreme Judicial Courts of the European Union at the Bundesgerichtshof (Karlsruhe, 27 September 2018) Statement of the board on the meeting of the Network of the Presidents of the Supreme Judicial Courts of the European Union from 27 to 29 September 2018 in Karlsruhe