ŁASKA, Grażyna. “Natura 2000” ecological network in the aspect of sustainable development. Ecological Questions, [S. l.], v. 15, n. 1, p. 9–21, 2013. DOI: 10.12775/v10090-011-0030-7. Disponível em: https://apcz.umk.pl/EQ/article/view/v10090-011-0030-7. Acesso em: 4 jul. 2025.