@book{521980,
	author = {Swinerd, Graham,},
	title = {How spacecraft fly :},
	publisher = {Copernicus Books :},
	year = {2008},
	address = {New York :},
	note = {Includes index.},
	url = {https://link.springer.com/book/10.1007/978-0-387-76572-3}
}