@book{113801,
	author = {International Perimetric Society. and Wall, Michael, and ebrary, Inc.},
	title = {Perimetry update 1998/1999},
	publisher = {Kugler Publications,},
	year = {1999.},
	address = {The Hauge :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10505607}
}