\input zb-basic \input zb-ioport \iteman{io-port 70202250} \itemau{Cassell, Keith; Andreae, Peter; Groves, Lindsay; Noble, James} \itemti{Towards automating class-splitting using betweenness clustering} \itemso{ASE, 595-599 (2009).} \itemcc{} \itemut{} \itemli{http://doi.ieeecomputersociety.org/10.1109/ASE.2009.21} \end