ULLAH, I. .; IQBAL, S.; SARWAR, F.; REHMAN, A. . . N-dimensional Fractional Fourier Transform and its Eigenvalues and Eigenfunctions. American Scientific Research Journal for Engineering, Technology, and Sciences, [S. l.], v. 62, n. 1, p. 210–214, 2019. Disponível em: https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/5494. Acesso em: 28 apr. 2024.