Lügering, HelenaHelenaLügeringÜsten, EzelEzelÜstenSieben, AnnaAnnaSieben2023-04-132023-04-132022https://www.alexandria.unisg.ch/handle/20.500.14171/10942410.17815/CD.2022.138enPushing and Non-pushing Forward Motion in Crowds: A Systematic Psychological Observation Method for Rating Individual Behavior in Pedestrian Dynamicsjournal article