An Assessment of Intrinsic and Extrinsic Motivation on Task Performance in Crowdsourcing MarketsJakob RogstadiusVassilis Kostakoset al.2011ICWSM 2011
CrisisTracker: Crowdsourced social media curation for disaster awarenessJ. RogstadiusMaja Vukovicet al.2013IBM J. Res. Dev