KASZTELAN, A.; KIJEK, T. Eco-innovation as a driver of regional smart specialization: the case of Lublin province. Economic and Environmental Studies, [S. l.], v. 15, n. 4 (36), p. 397–413, 2020. Disponível em: https://czasopisma.uni.opole.pl/index.php/ees/article/view/2976. Acesso em: 10 apr. 2025.