PIEŃKOWSKA-KAMIENIECKA, Sylwia. Selected Aspects of Supplementary Pension Savings a Behavioral Perspective. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 5, n. 10, p. 9–22, 2017. DOI: 10.18559/SOEP.2017.10.1. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3735. Acesso em: 3 sep. 2026.