Hajn, Z. (2021) „Protection of Whistleblowers in the Workplace. Who Is Protected and Who Is Responsible under the Provisions of the EU Directive 2019/1937?”, w Skupień, D. (red.) Towards a Better Protection of Workplace Whistleblowers in the Visegrad Countries, France and Slovenia. Poland: Wydawnictwo Uniwersytetu Łódzkiego (Prawo), s. 29–47. doi:10.18778/8220-639-5.03.