@article {Hammer2004183,
	title = {Characterizing dynamic spatial and temporal residential density patterns from 1940-1990 across the North Central United States},
	journal = {Landscape and Urban Planning},
	volume = {69},
	number = {2-3},
	year = {2004},
	note = {The Social Aspects of Landscape Change: Protecting Open Space Under the Pressure of Development},
	pages = {183 - 199},
	keywords = {Amenity growth, Cluster analysis, Housing density, Housing growth, Landscape change, Sprawl},
	issn = {0169-2046},
	doi = {DOI: 10.1016/j.landurbplan.2003.08.011},
	url = {http://www.sciencedirect.com/science/article/B6V91-4BBHBTN-2/2/ab6ac67484362a8153ba5817d8f7cec6},
	author = {Roger B. Hammer and Susan I. Stewart and Richelle L. Winkler and Volker C. Radeloff and Paul R. Voss}
}
