JAŚKOWSKI, Kazimierz. Grounds of performing work based on a draft of the Labour Code from 2018. Studia Prawno-Ekonomiczne, [S. l.], v. 113, p. 87–101, 2019. DOI: 10.26485/SPE/2019/113/5. Disponível em: https://czasopisma.ltn.lodz.pl/Studia-Prawno-Ekonomiczne/article/view/730. Acesso em: 4 may. 2024.