\input zb-basic
\input zb-ioport
\iteman{io-port 50138077}
\itemau{Kowalski, Zbigniew S.}
\itemti{Dual skew products, genericity of the exactness property and finance}
\itemso{I. J. Bifurcation and Chaos 21, No. 2, 545-550 (2011).}
\itemcc{}
\itemut{}
\itemli{doi:10.1142/S0218127411028593}
\end