\input zb-basic
\input zb-ioport
\iteman{io-port 70514239}
\itemau{Groenendijk, Jeroen; Stokhof, Martin}
\itemti{Two theories of dynamic semantics}
\itemso{JELIA, 55-64 (1990).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/BFb0018433}
\end