Inproceedings (parameswaran2011answering)
Parameswaran, A. & Polyzotis, N.
Answering Queries using Humans, Algorithms and Databases
2011, 160-166

Inproceedings (little2010turkit)
Little, G.; Chilton, L. B.; Goldman, M. & Miller, R. C.
TurKit: human computation algorithms on mechanical turk
ACM, 2010, 57-66