\input zb-basic
\input zb-ioport
\iteman{io-port 70876523}
\itemau{Ohshima, Takumi; Serizawa, Takafumi; Yanagida, Yasuyuki}
\itemti{KHAKI: A hemispherical, multi-function input device for 3D operation}
\itemso{3DUI, 141-142 (2010).}
\itemcc{}
\itemut{}
\itemli{http://doi.ieeecomputersociety.org/10.1109/3DUI.2010.5444697}
\end