Case T-583/18: Judgment of the General Court of 5 October 2020 — GVN v Commission (State aid — Public transport of passengers — Offsetting of the costs involved in the performance of public service obligations — Obligation to establish maximum tariffs for pupils, students, apprentices and persons with reduced mobility — Article 7a of the Niedersächsisches Nahverkehrsgesetz (Law on local transport of the Land of Lower Saxony) — Decision not to raise objections — Article 3(2) and (3) of Regulation (EC) No 1370/2007 — Transfer of financial resources from a Land to transport authorities at municipal level — Concept of aid)