@article {Greenberg:2006:1369-4154:55,
	author = "Greenberg, Robert",
	title = "Necessity, Existence and Transcendental Idealism",
	journal = "Kantian Review",
	volume = "11",
	number = "1",
	year = "2006",
	abstract = "",
	pages = "55-77",
	url = "http://www.ingentaconnect.com/content/uwp/kant/2006/00000011/00000001/art00003"
}