\input zb-basic
\input zb-ioport
\iteman{io-port 03809583}
\itemau{Winston, Kenneth J.; Kleitman, Daniel J.}
\itemti{On the asymptotic number of tournament score sequences.}
\itemso{J. Comb. Theory, Ser. A 35, 208-230 (1983).}
\itemcc{}
\itemut{Catalan numbers; tournaments; score sequences}
\itemli{doi:10.1016/0097-3165(83)90008-0}
\end