Reihe Understanding Complex SystemsPushkin Kachroo × Pedestrian DynamicsFeedback Control of Crowd EvacuationPushkin KachrooSpringer BerlinSoftcover2010 Pedestrian DynamicsFeedback Control of Crowd EvacuationPushkin KachrooSpringer BerlinHardcover2008 Pedestrian DynamicsFeedback Control of Crowd EvacuationPushkin KachrooSpringer BerlineBook2008