Case C-610/18: Judgment of the Court (Grand Chamber) of 16 July 2020 (request for a preliminary ruling from the Centrale Raad van Beroep — Netherlands) — AFMB Ltd and Others v Raad van bestuur van de Sociale verzekeringsbank (Reference for a preliminary ruling — Migrant workers — Social security — Legislation applicable — Regulation (EEC) No 1408/71 — Article 14(2)(a) — Concept of ‘person who is a member of the travelling personnel of an undertaking’ — Regulation (EC) No 883/2004 — Article 13(1)(b) — Concept of ‘employer’ — Long-distance lorry drivers normally employed in one or more Member States or States of the European Free Trade Association (EFTA) — Long distance lorry drivers who have entered into an employment contract with one undertaking but are in fact subject to the authority of another undertaking established in the Member State where those drivers reside — Determination of which undertaking is the ‘employer’)