5Ackerman, Raymond J. Bruce, 1971. "Regulating Slum Housing Markets on Behalf of the Poor: Of Housing Codes, Housing Subsidies and Income Redistribution Policy. "The Yale Law Journal. 80:1093 -197.
6Buchanan, James M. and Wm. Craig Stubblebine, 1962. "Externality. "Economica. 29:371 - 84.
7Fisher,Anthony C., 1973. "Environmental Externalities and the Arrow- Lind Public Investment Theo- rem. "The American Economic Review. 63:722 -25.
8Gray, David R. , 1993. "Behavioural Adaptations to Arctic Winter:Shelter Seeking by Arctic Hare (Lepus Arcticus). "Arctic, Circumpolar Ecosystems in Winter 11. 46:340 - 53.
9Galster, George, Peter Tatian and Kathryn Pettit, 2004. "Supportive Housing and Neighborhood Property Value Externalities. "Land Economics. 80:33 - 54.
10Komesar, Neil K. , 1973. "Return to Slumville:A Critique of the Ackerman Analysis of Housing Code En- forcement and the Poor. "The Yale Law Journal. 82 : 1175 - 193.
