SYLWESTRZAK, Dorota. Activation of the elderly at the commune level. Social Entrepreneurship Review, Poland, v. 1, p. 58–67, 2020. DOI: 10.15678/ES.2020.1.06. Disponível em: https://ser.uek.krakow.pl/index.php/ser/article/view/23.. Acesso em: 5 apr. 2025.