MATUSEWICZ, Janusz; HARŁOZIŃSKI, Kazimierz. Implementation of the concept of sustainable development in communes of the Bydgoszcz district. Journal of Education, Health and Sport, [S. l.], v. 6, n. 13, p. 413–463, 2016. Disponível em: https://apcz.umk.pl/JEHS/article/view/4442. Acesso em: 9 jan. 2025.