The counter-claim in litigation about international contracts of employment. (Commentary to EUCJ judgment 21 June 2018, case C-1/17, Petronas Lubricants Italy). Cuad. derecho transnac. [Internet]. 2019 Oct. 1 [cited 2025 Dec. 5];11(2):604-15. Available from: https://e-revistas.uc3m.es/index.php/CDT/article/view/4980