Matyjas-Łysakowska P, Maroń A. Application of an employment contract for a trial period in the light of EU and national regulations. In: Duraj T, editor. The use of atypical forms of employment in violation of labour and social security laws - diagnosis and prospects for the future [Internet]. Poland: Lodz University Press; 2023 [cited 2026 Jan. 25]. pp. 83-96. (, editor. Law). Available from: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/785/chapter/1866