Rieks op den Akker Dennis Hofs Hendri Hondorp Harm op den Akker Job Zwiers Anton Nijholt Supporting Engagement and Floor Control in Hybrid Meetings. 276-290 2008 COST 2102 Conference (Prague) http://dx.doi.org/10.1007/978-3-642-03320-9_26 conf/cost/2008p db/conf/cost/cost2008p.html#AkkerHHAZN08