Kaushalendra K. Khadanga and  Lee Hee Hyol,  Active Linear Quadratic Gaussian Secondary Suspension Control of Flexible Bodied Railway Vehicle.   journal   = {International Journal of Transport and Vehicle Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2018, vol. 143(11). 1033 - 1038
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10009754.