Mbaitiga Zacharie,  GPS and Discrete Kalman Filter for Indoor Robot Navigation.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2011, vol. 60(12). 1635 - 1641
    [viewed 04 May 2024]. Available from: https://publications.waset.org/pdf/13755.