@book{29609,
	author = {Si, X. P.},
	title = {The Research Development of Cellulose Acetate Fiber and Cellulose Acetate Nanofiber Used as Filtering Materials},
	url = {https://drive.google.com/file/d/1zB2aRsUXa1wU448v4hqDtBskRFvTGbdq/view?usp=drivesdk}
}