\input zb-basic \input zb-ioport \iteman{io-port 50344597} \itemau{Ubayashi, Naoyasu; Tamai, Tetsuo} \itemti{Concern management for constructing model compilers} \itemso{ACM SIGSOFT Software Engineering Notes 30, No. 4, 1-5 (2005).} \itemcc{} \itemut{} \itemli{doi:10.1145/1082983.1083127} \end