T. Zalabsky and  P. Bezousek and  T. Shejbal ,  Ribbon Beam Antenna for RFID Technology.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2013, vol. 82(10). 1281 - 1283
    [viewed 19 September 2020]. Available from: https://publications.waset.org/pdf/17035.