@article {511,
	title = {Lax  Lenses},
	number = {GSDLAB-TR 2013-03-10},
	year = {2013},
	month = {03/2013},
	institution = {University of Waterloo},
	type = {Technical Report},
	issn = {GSDLAB-TR 2013-03-10},
	attachments = {http://gsd.uwaterloo.ca/sites/default/files/TR-lax-lenses_0.pdf},
	author = {Diskin, Zinovy}
}