ULRYCH, Wojciech; SYPER-JĘDRZEJAK, Marzena. MANAGING OLDER WORKER’S PERFORMANCE: A CHALLENGE FOR POLISH ORGANIZATIONS. Journal of Positive Management, [S. l.], v. 8, n. 4, p. 3–13, 2018. DOI: 10.12775/JPM.2017.127. Disponível em: https://apcz.umk.pl/JPM/article/view/JPM.2017.127. Acesso em: 8 jul. 2025.