Comprehensive risk assessment method for resuming classes in universities during COVID-19 epidemic
WANG Tienan, ZHAI Yue, WANG Kang, ZHAO Ruifeng, HAN Shupeng
China Safety Science Journal . 2021, (2): 143 -148 .  DOI: 10.16265/j.cnki.issn 1003-3033.2021.02.020