Jc. Yao et Cy. Hsu, FURTHER RESULTS ON NEW FAST RECURSIVE ALGORITHMS FOR THE DISCRETE COSINE AND SINE TRANSFORMS, IEEE transactions on signal processing, 42(11), 1994, pp. 3254-3255
It is interesting to note that the results given in the above paper ma
y be obtained from different derivations of previous algorithms using
either forward or inverse DST/DCT.