\input zb-basic
\input zb-ioport
\iteman{io-port 70783135}
\itemau{Lee, Chien-Sing; Singh, Yashwant Prasad}
\itemti{Student modeling using principal component analysis of SOM clusters}
\itemso{ICALT, 0- (2004).}
\itemcc{}
\itemut{}
\itemli{doi:10.1109/ICALT.2004.1357461}
\end