Johnson SG, Frigo M (בספטמבר 2008). "ch.11: Implementing FFTs in practice". In C. S. Burrus (ed.). Fast Fourier Transforms. Houston TX: Connexions: Rice University.
Frigo M, Johnson SG (1998). "FFTW: An adaptive software architecture for the FFT". Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181). Vol.3. pp.1381–1384. CiteSeerX10.1.1.47.8661. doi:10.1109/ICASSP.1998.681704. ISBN978-0-7803-4428-0.
Frigo M, Johnson SG (1998). "FFTW: An adaptive software architecture for the FFT". Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181). Vol.3. pp.1381–1384. CiteSeerX10.1.1.47.8661. doi:10.1109/ICASSP.1998.681704. ISBN978-0-7803-4428-0.