1. Lynch, K.: The Image of the City. MIT Press, Cambridge (1960)
2. Milgram, S.: The Individual in a Social World, 3rd edn. Pinter and Martin, London (2010)
3. Lynn, P.: Maintaining Cross-Sectional Representativeness in a Longitudinal General Population Survey. Understanding Society Working Paper (June 2011)
4. Froehlich, J., Neumann, J., Oliver, N.: Sensing and Predicting the Pulse of the City through Shared Bicycling. In: 21st IJCAI, Pasadena, California (2009)
5. Rachuri, K., et al.: EmotionSense: A Mobile Phones based Adaptive Platform for Experimental Social Psychology Research. In: ACM UbiComp (2010)