Pojęcie zmiany treści umownego stosunku pracy: [The concept of a change in the content of the contractual employment relationship]. Studia Prawnicze / The Legal Studies, [S. l.], n. 2 (52), p. 101–146, 2023. DOI: 10.37232/sp.1977.2.5. Disponível em: https://czasopisma.inp.pan.pl/index.php/sp/article/view/3038. Acesso em: 6 oct. 2025.