Andrew Randles and  Ilker Ocak and  Cheam Daw Don and  Navab Singh and  Alex Gu,  The Design, Development, and Optimization of a Capacitive Pressure Sensor Utilizing an Existing 9 DOF Platform.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2015, vol. 105(9). 1035 - 1038
    [viewed 26 January 2020]. Available from: https://publications.waset.org/pdf/10002144.