WASET
    Isaac Cassar and  Trevor Davis and  Yi-Kai Lo and  Wentai Liu,  A Virtual Electrode through Summation of Time Offset Pulses.   journal   = {International Journal of Bioengineering and Life Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2014, vol. 93(9). 586 - 591
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/9999416.