\input zb-basic
\input zb-ioport
\iteman{io-port 70437734}
\itemau{Agrawal, Divyakant; El Abbadi, Amr}
\itemti{A non-restrictive concurrency control for object oriented databases}
\itemso{EDBT, 469-482 (1992).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/BFb0032449}
\end