Popov Игорь Павлович. “Differential Equations of the Start of Motion of Elasticly Coupled Inert Bodies on the Example of a Train With Elastic Couplings”. BULLETIN OF PERM UNIVERSITY. MATHEMATICS. MECHANICS. COMPUTER SCIENCE, no. 2 (53) (December 10, 2021): 45–51. Accessed December 18, 2025. https://press.psu.ru/index.php/Math/article/view/5019.