References
- Budak , A. and Aronhime , P. 1970 . Maximally flat low-pass filters with steeper slopes at cutoff . IEEE Transactions on Audio Electroacoustics , AU-18 : 63 – 66 .
- Duta Roy , S. C. 1971 . On maximally flat sharp cutoff low-pass filters . IEEE Transactions on Audio Electroacoustics , AU-19 : 58 – 63 .
- Rader , C. M. and Gold , B. 1967 . Digital filter design techniques in the frequency domain . Proceedings of IEEE , 55 : 149 – 171 .
- Soltis , J. J. and Sid-Ahmed , M. A. 1991 . Direct design of Chebyshev-type recursive digital filters . International Journal of Electronics , 70 : 413 – 419 .
- Stojanović , V. and Nikoli´ , S. 1993 . Direct design of transitional Butterworth–Chebyshev recursive digital filters . Electronics Letters , 29 ( 3 ) : 285 – 287 .