\input zb-basic \input zb-ioport \iteman{io-port 71017395} \itemau{Lynce, In\^es; Silva, Jo\~ao P. Marques} \itemti{Tuning randomization in backtrack search SAT algorithms} \itemso{CP, 769 (2002).} \itemcc{} \itemut{} \itemli{} \end