A.G. Yessengaliyev, and A.D. Tapashev. “Mathematical Substantiation of Diagnostics of the Technical Condition of the Oil Pipeline”. BULLETIN OF THE L.N. GUMILYOV EURASIAN NATIONAL UNIVERSITY. Mathematics. Computer science. Mechanics series 135, no. 2 (June 30, 2021): 64–70. Accessed May 4, 2024. https://bulmathmc.enu.kz/index.php/main/article/view/90.