Opinion of Advocate General Sharpston delivered on 11 July 2019.#Reiner Grafe and Jürgen Pohle v Südbrandenburger Nahverkehrs GmbH and OSL Bus GmbH.#Request for a preliminary ruling from the Arbeitsgericht Cottbus - Kammern Senftenberg.#Reference for a preliminary ruling — Directive 2001/23/EC — Article 1(1) — Transfer of an undertaking — Safeguarding of employees’ rights — Operation of bus routes — Re-employment of the staff — Operating resources not taken over — Grounds.#Case C-298/18.