Akyildiz, I.F.; Vuran, M.C. (2010). Wireless Sensor Networks; Wiley Publication: Hoboken, NJ, USA, 2010.
Akyildiz, I.F.; Su,W.; Sankarasubramaniam, Y.; Cayirci, E. A survey on sensor networks. IEEE Commun. Mag. 2002, 40, 102–114
Ayesha Haroon. (2015). Raspberry-Pi (On-Board Computer) Based Intelligent Vehicle Parking System.” International Journal of Technology and Research: Vol. 3, No 1.
F. Shaik, P. Jadhav, S. Bhandarkar, O. Kulkarni, N. Shardoor. (2016) Smart Parking System Based on Embedded System and Sensor Network. .International Journal of Computer Applications (0975-8887) Volume 140-No. 12.
Hanche, S. C., (2013). Automated Vehicle Parking System using RFID.Volume-1, Issue-2
Hilmani, A.;Maizate, (2017. )A. A study of self-organization protocols in wireless sensor network.Mediterr. Telecommun. J.
J. Takahashi, K. Sekiyama, T. Fukuda, (2009) “Cooperative Object Tracking With Mobile Robotic Sensor Network”, Distributed Autonomous Robotic Systems. Springer, Berlin, pp 51–62.
Kalantary, S.; Taghipour, S. (2014). A survey on architectures, protocols, applications, and management in wireless sensor networks. J. Adv. Comput. Sci. Technol.
K. Pardeshi. (2015)., Design and Implementation of Smart Car Parking System (SCPS) using Raspberry Pi.. International Journal of Scientific Research & Development Vol. 3, Issue 07.
R. Yusnita, F. Norbaya, N. Basharudin. (2012). Intelligent Parking Space Detection System Based on Image Processing. International Journal of Innovation, Management, and Technology, Vol. 3, No. 3.
S. Lee, D. Yoon, A. Ghosh, “Intelligent Parking Lot Application Using Wireless Sensor Networks”, International Symposium on Collaborative Technologies and Systems, pp.48-57, 19-23 May 2008. 
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