XU, P.; ZHAO, X.; LI, H. Spatial distribution and influencing factors of ecological efficiency in Yangtze river delta. Revista Internacional de Contaminación Ambiental, [S. l.], v. 38, p. 173–183, 2022. DOI: 10.20937/RICA.54465. Disponível em: https://www.revistascca.unam.mx/rica/index.php/rica/article/view/54465. Acesso em: 29 abr. 2024.