\input zb-basic \input zb-ioport \iteman{io-port 70565136} \itemau{Vogel, Thomas; Seibel, Andreas; Giese, Holger} \itemti{The role of models and megamodels at runtime} \itemso{MoDELS Workshops, 224-238 (2010).} \itemcc{} \itemut{} \itemli{doi:10.1007/978-3-642-21210-9\_22} \end