@inproceedings{SIGMOD-2009-BercovitzKKLZG,
	author        = "Benjamin Bercovitz and Filip Kaliszan and Georgia Koutrika and Henry Liou and Zahra Mohammadi Zadeh and Hector Garcia-Molina",
	booktitle     = "{Proceedings of the 27th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1559845.1559994",
	isbn          = "978-1-60558-551-2",
	pages         = "1107--1110",
	publisher     = "{ACM}",
	title         = "{CourseRank: a social system for course planning}",
	year          = 2009,
}