\input zb-basic \input zb-ioport \iteman{io-port 70565485} \itemau{Johansen, Martin Fagereng; Haugen, {\o}ystein; Fleurey, Franck} \itemti{Properties of realistic feature models make combinatorial testing of product lines feasible} \itemso{MoDELS, 638-652 (2011).} \itemcc{} \itemut{} \itemli{doi:10.1007/978-3-642-24485-8\_47} \end