Leonor Varandas and  Pedro D. Gaspar and  Martim L. Aguiar,  Standalone Docking Station with Combined Charging Methods for Agricultural Mobile Robots.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2019, vol. 145(1). 38 - 42
    [viewed 18 April 2024]. Available from: https://publications.waset.org/pdf/10009951.