Verbovoy, A. Y., M. L. Sieryk, I. V. Pavlenko, and A. A. Rudenko. 2021. “CALCULATION OF THE CENTRIFULAL PUMP CRITICAL FREQUENCIES BASED ON ITS DISCRETE MATHEMATICAL MODEL”. Journal of Numerical and Applied Mathematics, no. 1 (135) (July): 43-52. https://doi.org/10.17721/2706-9699.2021.1.05.