ASTANIN, D. M. The Second Level of Organization of Environmental Protection Systems: The State Regulation — A Russian Experience. World Journal of Environmental Research, [S. l.], v. 15, n. 1, p. 65–71, 2025. DOI: 10.18844/wjer.v15i1.9729. Disponível em: https://un-pub.eu/ojs/index.php/wjer/article/view/9729. Acesso em: 14 jul. 2026.