WASET
    K. Raghuwaiya and  S. Singh and  B. Sharma and  J. Vanualailai,  Potential Field Functions for Motion Planning and Posture of the Standard 3-Trailer System.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2014, vol. 87(3). 560 - 566
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/9997841.