Boucetta, Y., R. Ayad, and Z. Ahmed-Foitih. “Control of Mobile Robot Using Fractional Order PI^λD^μ Controller”. ECTI Transactions on Electrical Engineering, Electronics, and Communications, vol. 17, no. 2, Aug. 2019, pp. 144-51, doi:10.37936/ecti-eec.2019172.219185.