\bib{1971/heindel}
\yr 1971
\by Lee E. Heindel
\by Ellis Horowitz
\paper On decreasing the computing time for modular arithmetic
\inbook \cite{1971/hennie}
\pages 126--128
\url http://cr.yp.to/\allowbreak bib/\allowbreak entries.html#\allowbreak 1971/\allowbreak heindel
\endref