@book{5144,
	author = {Boyce,William E.},
	title = {Elementary Differential Equations},
	publisher = {John Wiley & Sons Publisher},
	address = {New York},
	edition = {7th},
	url = {https://libgen.is/book/index.php?md5=0D4101530235523E1E37219A2851A0DC}
}