\bib{1968/yavne} \yr 1968 \by R. Yavne \paper An economical method for calculating the discrete Fourier transform \inbook \cite{1968/-afips-33} \pages 115--125 \url http://cr.yp.to/\allowbreak bib/\allowbreak entries.html#\allowbreak 1968/\allowbreak yavne \endref