\input zb-basic
\input zb-ioport
\iteman{io-port 60000645}
\itemau{Lenstra, Arjen K.}
\itemti{Factoring circuits}
\itemso{Encyclopedia of Cryptography and Security (2005).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/0-387-23483-7\_153}
\end