Zheng, Wei, Juan Han, Weijie Kong, and Lixiang Wang. “Group-SMA Algorithm Based Joint Estimation of Train Parameter and State”. Promet - Traffic&Transportation 27, no. 1 (March 2, 2015): 85-95. Accessed June 20, 2021. https://traffic.fpz.hr/index.php/PROMTT/article/view/1499.