\bib{1996/elkenbracht-4} \yr 1996 \mr 2000e:11157 \by R.-Marije Elkenbracht-Huizing \by Peter L. Montgomery \by Robert D. Silverman \by R. K. Wackerbarth \by Samuel S. Wagstaff, Jr. \paper The number field sieve on many computers \inbook \cite{1999/gupta} \pages 81--85 \endref