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   6. Jihoon Yang, Jorge Portilla and Teresa Riesgo, “Smart Parking Service based on Wireless Sensor Networks”.
   7. Yatin Jog, AnujaSajeev, ShreyasVidwans and Chandradeep Mallick3, “Understanding Smart and Automated Parking Technology”.
   8. M. O. Reza, M. F. Ismail, A. A. Rokoni, M. A. R. Sarkar: Smart parking system with Image Processing Facility, 2012(3), 41-47
   9. ABI Research, Smartphone OS Results: Android Dominates High Growth Developing Markets Technology Market Intelligence, Smartphone and Handsets Market Research, 2014.
   10. http://digitalcommons.unl.edu/computerscidiss;R eservation Based Smart Parking System