S.A. Mahdavifar and  G.R. Sotudeh. and  K. Heydari,  Automatic Vehicle Location Systems.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2009, vol. 30(6). 1550 - 1553
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/9610.