\input zb-basic \input zb-ioport \iteman{io-port 05742638} \itemau{Kopp, Stefan; Aylett, Ruth; Gratch, Jonathan; Olivier, Patrick; Pelachaud, Catherine} \itemti{Guest editorial of the special issue on intelligent virtual agents.} \itemso{Auton. Agents Multi-Agent Syst. 20, No. 1, 1-2 (2010).} \itemcc{} \itemut{} \itemli{doi:10.1007/s10458-009-9098-5} \end