WASILEWSKA, E. Economic Activity of Older People in Selected EU Countries. Zeszyty Naukowe SGGW w Warszawie - Problemy Rolnictwa Światowego, [S. l.], v. 13, n. 4, p. 175–183, 2013. DOI: 10.22630/PRS.2013.13.4.74. Disponível em: https://prs.sggw.edu.pl/article/view/5092. Acesso em: 16 maj. 2024.