@book{31966,
	author = {Gordon, M.A. and Sorochenko, R.L. and SpringerLink (Online service)},
	title = {Radio Recombination Lines},
	publisher = {Springer New York,},
	year = {2009.},
	series = {Astrophysics and Space Science Library,},
	address = {New York, NY :},
	url = {http://dx.doi.org/10.1007/978-0-387-09691-9}
}