\input zb-basic
\input zb-ioport
\iteman{io-port 50317387}
\itemau{Anantha, Ram; Kramer, Glenn A.; Crawford, Richard H.}
\itemti{Assembly modelling by geometric constraint satisfaction}
\itemso{Computer-Aided Design 28, No. 9, 707-722 (1996).}
\itemcc{}
\itemut{}
\itemli{doi:10.1016/0010-4485(96)00001-2}
\end