Staszewska-Kozłowska, Ewa. “Labour Protection for Persons Taking Up Non-Work Employment for Purposes Other Than Gainful Employment Using the Example of a Traineeship for Unemployed Persons and a Graduate Practices”. Acta Universitatis Lodziensis. Folia Iuridica 112 (September 30, 2025): 157–171. Accessed December 6, 2025. https://www.czasopisma.uni.lodz.pl/Iuridica/article/view/24702.