Crowdsourcing systems on the World-Wide Web

Cite this paper

@article{Doan2011CrowdsourcingSO, title={Crowdsourcing systems on the World-Wide Web}, author={AnHai Doan and Raghu Ramakrishnan and Alon Y. Halevy}, journal={Commun. ACM}, year={2011}, volume={54}, pages={86-96} }