Carlos V. Regueiro and  Jose E. Domenech and  Roberto Iglesias and  Jose L. Correa,  Acquiring Contour Following Behaviour in Robotics through Q-Learning and Image-based States.   journal   = {International Journal of Mechanical and Materials Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2008, vol. 22(10). 3452 - 3457
    [viewed 22 January 2020]. Available from: