Adrian Samuel Limanto and  Yunli Lee,  Developing Vision-Based Digital Public Display as an Interactive Media.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2013, vol. 80(8). 1113 - 1119
    [viewed 22 October 2019]. Available from: https://publications.waset.org/pdf/16171.