@inproceedings{CIKM-2011-JameelLYC,
	author        = "Shoaib Jameel and Wai Lam and Ching-man Au Yeung and Sheaujiun Chyan",
	booktitle     = "{Proceedings of the 20th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2063576.2063872",
	isbn          = "978-1-4503-0717-8",
	pages         = "1989--1992",
	publisher     = "{ACM}",
	title         = "{An unsupervised ranking method based on a technical difficulty terrain}",
	year          = 2011,
}