BRZEZIŃSKI, Artur. Convergence of titles to insurance Social Security. In: DURAJ, Tomasz (ed.). The use of atypical forms of employment in violation of labour and social security laws - diagnosis and prospects for the future. LawPoland: Lodz University Press,2023. p. 265–280. DOI: 10.18778/8331-395-5.22. Disponível em: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/785/chapter/1881. Acesso em: 14 feb. 2026.