A.G. Yessengaliyev, & A.D. Tapashev. (2021). Mathematical substantiation of diagnostics of the technical condition of the oil pipeline. Bulletin of L.N. Gumilyov Eurasian National University. Mathematics, Computer Science, Mechanics Series, 135(2), 64–70. https://doi.org/10.32523/bulmathenu.2021/2.3