@book{50440,
	author = {Heine, Ronald E.},
	title = {Origen},
	publisher = {Oxford University Press,},
	year = {2010.},
	series = {Christian theology in context},
	address = {Oxford :},
	url = {http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=369815}
}