@inproceedings{RecSys-2014-YangAR,
	author        = "Diyi Yang and David Adamson and Carolyn Penstein Rosé",
	booktitle     = "{Proceedings of the Eighth Conference on Recommender Systems}",
	doi           = "10.1145/2645710.2645748",
	isbn          = "978-1-4503-2668-1",
	pages         = "49--56",
	publisher     = "{ACM}",
	title         = "{Question recommendation with constraints for massive open online courses}",
	year          = 2014,
}