Vol-1147⫷ Vol-1148 ⫸Vol-1149
urn:nbn:de:0074-1148-0


Vol-1148/paper2⫷Vol-1148/paper3⫸Vol-1148/paper4

Crowdsourcing as an Activity System: Online Platforms as Mediating Artifacts. A Conceptual Framework for the Comparative Analysis of Crowdsourcing in Emergencies