1. Greengard, S.: Following the crowd. Communications of the ACM 54, 20–22 (2011)
2. Mea, V.D., Maddalena, E., Mizzaro, S.: Crowdsourcing to Mobile Users - A Study of the Role of Platforms and Tasks. In: Cheng, R., Sarma, A.D., Maniu, S., Senellart, P. (eds.) Proceedings of First VLDB Workshop on Databases and Crowdsouring (DBCrowd 2013). CEUR, vol. 1025, pp. 14–19 (2013)
3. Chatzimilioudis, G., Konstantinidis, A., Laoudias, C., Zeinalipour-Yazti, D.: Crowdsourcing with Smartphones. IEEE Internet Computing 16(5), 36–44 (2012)
4. Chon, Y., Lane, N.D., Kim, Y., Zhao, F., Cha, H.: A Large-scale Study of Mobile Crowdsourcing with Smartphones for Urban Sensing Applications. In: UbiComp 2013 (2013)
5. Abecker, A., Braun, S., Kazakos, W., Zacharias, V.: Participatory Sensing for Nature Conservation and Environment Protection. In: 26th International Conference on Informatics for Environmental Protection (EnviroInfo 2012), Shaker, Aachen, pp. 393–401 (2012)