Nan-Chyuan Tsai and  Sheng-Liang Hsu,  Tri-Axis Receiver for Wireless Micro-Power Transmission.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2010, vol. 46(10). 1559 - 1563
    [viewed 18 October 2019]. Available from: https://publications.waset.org/pdf/3526.