\input zb-basic
\input zb-ioport
\iteman{io-port 05516998}
\itemau{Xu, Wen-Qing; Golomb, Solomon W.}
\itemti{Two-dimensional array coloring with many colors.}
\itemso{IEEE Trans. Inf. Theory 54, No. 9, 4391-4394 (2008).}
\itemcc{}
\itemut{}
\itemli{doi:10.1109/TIT.2008.928286}
\end