\input zb-basic \input zb-ioport \iteman{io-port 70178318} \itemau{Frinken, Volkmar; Bunke, Horst} \itemti{Evaluating retraining rules for semi-supervised learning in neural network based cursive word recognition} \itemso{ICDAR, 31-35 (2009).} \itemcc{} \itemut{} \itemli{doi:10.1109/ICDAR.2009.18} \end