Holovin, M., and N. Holovina. “Usage of Fourier Transforms for Spectral Analysis of Sounds in the Courses of Computer Physics and Information Security. ”. COMPUTER-INTEGRATED TECHNOLOGIES: EDUCATION, SCIENCE, PRODUCTION, no. 42, Mar. 2021, pp. 37-42, doi:10.36910/6775-2524-0560-2021-42-06.