@article{202102.0101,
	doi = {},
	url = {https://doi.org/},
	year = 2021,
	month = {February},
	publisher = {Preprints},
	author = {Yasaman Boroumand and Abdolrasoul Ghasemi and Masoud Shirazi},
	title = {The Efficiency of Governments` Policies to COVID-19: A Top-Down Approach Based on DEA Window Analysis},
	journal = {Preprints}
}