\input zb-basic
\input zb-ioport
\iteman{io-port 70771347}
\itemau{Nakano, Akira; Hirashima, Tsukasa; Takeuchi, Akira}
\itemti{An evaluation of intelligent learning environment for problem posing}
\itemso{Intelligent Tutoring Systems, 861-872 (2002).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/3-540-47987-2\_86}
\end