Smilijanow A, Mitrov Z. ON THE CORRECTNESS OF DIFFERENTIAL AND DIFFERENCE METHODS FOR ANALYSIS OF THE STABILITY OF CONTINUOUS RAILWAYS. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 1991 Dec. 12 [cited 2024 Dec. 5];82(1):5-12. Available from: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/518