SIKARWAR, A.; RANI, R. Assessing the Immediate Effect of Covid-19 Lockdown on Air Quality: A Case Study of Delhi, India. Journal of Environmental Geography, [S. l.], v. 13, n. 3-4, p. 27–33, 2020. DOI: 10.2478/jengeo-2020-0009. Disponível em: https://iskolakultura.hu/index.php/jengeo/article/view/43732. Acesso em: 20 dec. 2024.