Eiko Takaoka and  Ryohei Takahashi and  Takashi Toyoda,  Operating Live E! Digital Meteorological Equipments Using Solar Photovoltaics.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2014, vol. 90(6). 951 - 955
    [viewed 19 March 2024]. Available from: https://publications.waset.org/pdf/9998935.