\input zb-basic
\input zb-ioport
\iteman{io-port 50064697}
\itemau{Van Der Kleij, Fabienne M.; Eggen, Theo J. H. M.; Timmers, Caroline F.; Veldkamp, Bernard P.}
\itemti{Effects of feedback in a computer-based assessment for learning}
\itemso{Computers & Education 58, No. 1, 263-272 (2012).}
\itemcc{}
\itemut{}
\itemli{doi:10.1016/j.compedu.2011.07.020}
\end