Gheorghe Galben and  Daniel N. Aloi,  Low-Cost and Highly Accurate Motion Models for Three-Dimensional Local Landmark-based Autonomous Navigation.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2011, vol. 56(8). 921 - 929
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/15444.