JAKAB, Nóra; SOLYMOSI-SZEKERES, Bernadett. The Theoretical Issue of Social Security—International and European Perspectives. In: JAKAB, Nóra (ed.). Sustainability Of The Social Security System: Demographic Challenges and Answers in Central Europe. [s.l.] : Legal Studies on Central Europe,2023. p. 19–50. DOI: 10.54171/2023.nj.sotsss_2. Disponível em: https://books.ceapublishing.hu/index.php/lsce/catalog/book/33/chapter/360. Acesso em: 3 aug. 2025.