FILIPOWICZ, Katarzyna; KELEBAJ, Oleksij; TOKARSKI, Tomasz. Labour productivity in Italian regions: A gravitational model approach. Economics and Business Review, Poland, v. 10, n. 2, p. 92–117, 2024. DOI: 10.18559/ebr.2024.2.1027. Disponível em: https://journals.ue.poznan.pl/ebr/article/view/1027. Acesso em: 7 apr. 2025.