For citations:
Vavilov D.S., Golovina V.V., Kudryavtsev A.A. On the influence of a concentrated inclusion on the spectrum of natural vibrations of a string and Bernoulli-Euler beam. Scientific and Technical Journal of Information Technologies, Mechanics and Optics. 2024;24(3):500-504. (In Russ.) https://doi.org/10.17586/2226-1494-2024-24-3-500-504