1. 1. K.Sowjanya and G.Chakravarthy “Vehicle Detection and Classification Using Consecutive Neighbouring Frame Difference Method” ISSN, Vol. 1, Issue 2, December 2013.
   2. Saeid Fazli, Shahram Mohammadi and Morteza Rahmani “Neural Network Based Vehicle Classification for Intelligent Traffic Control” International Journal of Software Engineering & Applications [IIJSEA] Vol.3, No 3 May 2012.
   3. Hazim Hamza and Paul Whelan “Night Time Car Recognition Using Matlab” M-Eng in Electronic Systems 2013.
   4. Zezhi Chen, Nick Pears, Michael Freeman and Jim Austin “Road Vehicle Classification Using Support Vector Machines”.
   5. Jyotsna Tripathi, Kavita Chaudhary, Akansha Joshi and J.B.Jawale “Automatic Vehicle Counting and Classification” International Journal of Innovative and Emerging Research in Engineering, Vol. 2, Issue 4, 2015.
   6. JunYee Ng and Yong Haur Tay “Image Based Vehicle Classification System” The 11th Asia-Pacific ITS Forum & Exhibition June 2011
   7. Ankit Kumar Singh and Nemi Chand Bajiya “Image Vehicle Classification Based on Adaptive Edge Detection & PCA Method” International Journal of Advancement in Engineering Technology, Management & Applied Science Vol. 2, Issue 8, August 2015.
   8.  WEI WuMember, IEEE, Zhang Qisen and Wang Mingiun “A Method of Vehicle Classification Using Models and Neural Networks” IEEE, 2001.