G. BRITTO ANTONY XAVIER; M. MEGANATHAN; E. L. GOHILA. Finite Fourier Series Decomposition of Functions (Signals) of Three Variables. International Journal of Mathematics And its Applications, [S. l.], v. 6, n. 1 (Special Issue), p. 33–39, 2018. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/1392. Acesso em: 19 may. 2024.