Hajn, Zbigniew. “Protection of Whistleblowers in the Workplace. Who Is Protected and Who Is Responsible under the Provisions of the EU Directive 2019 1937?”. In Towards a Better Protection of Workplace Whistleblowers in the Visegrad Countries, France and Slovenia, edited by Dagmara Skupień, 29–47. Law. Poland: Lodz University Press, 2021. Accessed February 9, 2026. https://press.uni.lodz.pl/index.php/wul/catalog/book/468/chapter/1321.