J. H. McClellan and T. W. Parks, “Eigenvalue and Eigenvector Decomposition of the Discrete Fourier Transform,” IEEE Transactions on Audio and Electroacoustics, Vol. 20, No. 1, 1972, pp. 66-74.
http://dx.doi.org/10.1109/TAU.1972.1162342

has been cited by the following article:

• TITLE: Characterization of Periodic Eigenfunctions of the Fourier Transform Operator

  AUTHORS: Comlan de Souza, David W. Kammler

  KEYWORDS: Eigenfunction; Fourier Transform Operator

  JOURNAL NAME: American Journal of Computational Mathematics, Vol.3 No.4, November 21, 2013

  ABSTRACT: We generalize this result to p1,p2-periodic eigenfunctions of Fon R2 and to p1,p2,p3-periodic eigenfunctions of Fon R3.