KÓNYA, L. DISCRETE ORTHOGONAL FUNCTIONS APPLIED TO FILTERING AND DATA COMPRESSION. Periodica Polytechnica Electrical Engineering, [S. l.], v. 21, n. 1, p. 23–30, 1977. Disponível em: https://pp.bme.hu/ee/article/view/4873. Acesso em: 3 jul. 2024.