\input zb-basic
\input zb-ioport
\iteman{io-port 50222226}
\itemau{Adamatzky, Andrew}
\itemti{On excitable $\beta $-skeletons}
\itemso{J. Comput. Science 1, No. 3, 175-186 (2010).}
\itemcc{}
\itemut{}
\itemli{doi:10.1016/j.jocs.2010.07.003}
\end