Burova, Adeliya Yu., and Vitaly V. Kabakov. “‘Unerroric’ of Multistage Discrete Fourier Transform of Digital Signal Without Arithmetic Operations of Multiplication”. Amazonia Investiga 9, no. 25 (January 25, 2020): 429–437. Accessed August 26, 2026. https://amazoniainvestiga.info/index.php/amazonia/article/view/1092.