\input zb-basic
\input zb-ioport
\iteman{io-port 70936972}
\itemau{Csuhaj-Varj\'u, Erzs\'ebet}
\itemti{P automata: concepts, results, and new aspects}
\itemso{Workshop on Membrane Computing, 1-15 (2009).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/978-3-642-11467-0\_1}
\end