Patsegon, N. F., & PotseluievS. І. (2015). The volumetric parametric resonance in magnetizable medium. Visnyk of V. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics, 81, 20-35. https://doi.org/10.26565/2221-5646-2015-81-03