Zuo, Guocun, and Qiang Chen. “Challenges to Sustainability of Resource-Exhausted Cities: A Case Study of Lengshuijiang, China”. Problemy Ekorozwoju 10, no. 1 (January 5, 2015): 89–98. Accessed December 22, 2024. https://ph.pollub.pl/index.php/preko/article/view/4931.