WASET
    Kaige Shi and  Chao Jiang and  Xin Li,  Pressure-Detecting Method for Estimating Levitation Gap Height of Swirl Gripper.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2019, vol. 153(9). 478 - 483
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10010726.