(1)
Jakab, N.; Solymosi-Szekeres, B. The Theoretical Issue of Social Security—International and European Perspectives. In Sustainability Of The Social Security System: Demographic Challenges and Answers in Central Europe; Jakab, N., Ed.; Legal Studies on Central Europe, 2023; pp. 19–50. https://doi.org/10.54171/2023.nj.sotsss_2.