\input zb-basic \input zb-ioport \iteman{io-port 05514528} \itemau{Campagnolo, Manuel Lameiras; Ojakian, Kerry} \itemti{Characterizing computable analysis with differential equations.} \itemso{Electron. Notes Theor. Comput. Sci. 221, 23-35 (2008).} \itemcc{} \itemut{} \itemli{doi:10.1016/j.entcs.2008.12.004} \end