Gersdorf, Małgorzata. “New Economic Trends and the Presumption Rule of Concluding an Employment Contract”. Acta Universitatis Lodziensis. Folia Iuridica 88 (September 30, 2019): 35–41. Accessed January 11, 2025. https://czasopisma.uni.lodz.pl/Iuridica/article/view/5791.