@article {Mancha:December 2003:0008-8994:264,
	author = "Mancha J.L.",
	title = "Right Ascensions and Hippopedes: Homocentric Models in Levi ben Gersons Astronomy I. First Anomaly",
	journal = "Centaurus",
	volume = "45",
	year = "December 2003",
	abstract = "",
	pages = "264-283(20)",
	url = "http://www.ingentaconnect.com/content/mksg/cnt/2003/00000045/F0040001/art00020"
	doi = "doi:10.1111/j.1600-0498.2003.450120.x"
}