\input zb-basic \input zb-ioport \iteman{io-port 50193557} \itemau{Alon, Noga; Stav, Uri} \itemti{New bounds on parent-identifying codes: the case of multiple parents} \itemso{Combinatorics, Probability & Computing 13, No. 6, 795-807 (2004).} \itemcc{} \itemut{} \itemli{doi:10.1017/S0963548304006388} \end