Wang, Xueyan, Yuqing Wang, Yiran Zhao, Meijin Tian, Xinmeng Wu, Yongzhen Zhang, Feng Gao, Junjiao Sun, Xiaoqing Wei, Xiuying Yang, and Xiaohan Qu. “Impact of the COVID-19 Lockdown on Air Pollution in an Industrial City in Northeastern China”. Journal of Environmental Engineering and Landscape Management 31, no. 3 (September 4, 2023): 219–231. Accessed December 21, 2024. https://transport.vilniustech.lt/index.php/JEELM/article/view/19472.