Kim, Y., E. Harburg, S. Azria, A. Shaw, E. Gerber, D. Gergle, and H. Zhang. “Studying the Effects of Task Notification Policies on Participation and Outcomes in On-the-Go Crowdsourcing”. Proceedings of the AAAI Conference on Human Computation and Crowdsourcing, vol. 4, no. 1, Sept. 2016, pp. 99-108, doi:10.1609/hcomp.v4i1.13275.