Case C-253/18: Judgment of the Court (Tenth Chamber) of 8 May 2019 (request for a preliminary ruling from the Oberlandesgericht Düsseldorf — Germany) — Stadt Euskirchen v Rhenus Veniro GmbH & Co. KG (Reference for a preliminary ruling — Transport — Public passenger transport services by rail and by road — Regulation (EC) No 1370/2007 — Article 5(1) and (2) — Direct award — Contracts for public passenger transport services by bus and by tram — Conditions — Directive 2014/24/EU — Article 12 — Directive 2014/25/EU — Article 28)