@inproceedings{CIKM-2014-RokickiCZS,
	author        = "Markus Rokicki and Sergiu Chelaru and Sergej Zerr and Stefan Siersdorfer",
	booktitle     = "{Proceedings of the 23rd ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2661829.2661946",
	isbn          = "978-1-4503-2598-1",
	pages         = "1469--1478",
	publisher     = "{ACM}",
	title         = "{Competitive Game Designs for Improving the Cost Effectiveness of Crowdsourcing}",
	year          = 2014,
}