Efficient FFT algorithm based on the DST. - Anshu J. Gupta; K. R. Rao 001 (ICASSP, 1989)

A fast recursive algorithm for the discrete sine transform. - Anshu J. Gupta; K. R. Rao 001 (IEEE Trans. Acoust. Speech Signal Process., 1990)

An efficient FFT algorithm based on the discrete sine transform. - Anshu J. Gupta; K. R. Rao 001 (IEEE Trans. Signal Process., 1991)