Rung-Shiang Cheng and  Wei-Jun Hong and  Jheng-Syun Wang and  Kawuu W. Lin ,  An Indoor Guidance System Combining Near Field Communication and Bluetooth Low Energy Beacon Technologies.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2016, vol. 117(9). 1639 - 1645
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10005404.