1. The Half-Life of Facts: Why Everything We Know Has An Expiration Date;Arbesman,2012
2. Spatial entropy;Batty;Geogr Anal,1974
3. Entropy in spatial aggregation;Batty;Geogr Anal,1976
4. Fractal Cities: A Geometry of Form and Function;Batty,1994
5. When and where is a city fractal?;Benguigui;Environ Plann B Plann Des,2000