@article {,
	title = {Three Presentations on Geographical Analysis and Modeling, Technical Report 93-1},
	year = {1993},
	institution = {National Center for Geographic Information and Analysis},
	address = {Santa Barbara},
	abstract = {1) NON-ISOTROPIC MODELING2) SPECULATIONS ON THE GEOMETRY OF GEOGRAPHY3) GLOBAL SPATIAL ANALYSIS},
	url = {http://www.ncgia.ucsb.edu/Publications/Tech_Reports/93/93-1.PDF},
	author = {Tobler, Waldo}
}