1. J.G. Krieg, G. Jakllari, H. Toma, A.L. Beylot, Unlocking the smartphone’s senses for smart city parking, in: 2016 IEEE International Conference on Communications, ICC, 2016, pp. 1–7.
2. Urbitran/Parsons Brinckerhoff, Eng-Wong, Taub & Associates, Howard/Stein-Hudson Associates, Inc., HOK Planning, Canal Area Transportation Study Track II, New York Metropolitan Transportation Council. New York, NY, 2008.
3. ParkSense: A smartphone based sensing system for on-street parking;Nawaz,2013
4. Cruising for parking;Shoup;Transp. Policy,2006
5. Cincinnati has lots of unpaid parking tickets;Hanselman,2014