1. A contribution to the mathematical theory of epidemics;Kermack;Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences,1927
2. Mathematical biology. an introduction;Murray,2002
3. Fractal cities: A Geometry of form and function;Batty,1994
4. The new science of cities;Batty,2014
5. A unified theory of urban living;Bettencourt;Nature,2010