1. Bång, K.-L., 1976. Optimal control of isolated traffic signals. Transportation Research record No. 597, TRB Washington DC
2. Chiu, S., 1992. Adaptive traffic signal control using fuzzy logic. Proceedings of the Intelligent Vehicles Symposium ’92. Detroit. pp. 98–107
3. Cunningham, A., Kronborg, P., 2000. Specification, testing and implementation of a SPOT signal control system. Seventh Int. ITS Congress 2000, Turin
4. Kosonen, I., 1999. HUTSIM––Urban traffic simulation and control model: Principles and applications. Doctoral thesis. Helsinki University of Technology, Transportation Engineering. Publication 100. 248 p
5. Kosonen, T., 2002. Fuzzy logic based traffic signal control on major arterials. Helsinki University of Technology, Transportation Engineering. Master’s thesis, 2002. 146 p