Mędrala, Małgorzata. “The Legal Nature of Remuneration for Periods of Release From the Obligation to Perform Work for Trade Union Activists ”. Acta Universitatis Lodziensis. Folia Iuridica 95 (June 30, 2021): 101–113. Accessed December 6, 2025. https://www.czasopisma.uni.lodz.pl/Iuridica/article/view/10129.