@article {Kodippili:September 2008:0007-1013:928,
	author = "Kodippili, Asitha",
	author = "Senaratne, Deepthika",
	title = "Is computer-generated interactive mathematics homework more effective than traditional instructor-graded homework?",
	journal = "British Journal of Educational Technology",
	volume = "39",
	year = "September 2008",
	abstract = "",
	pages = "928-932(5)",
	url = "http://www.ingentaconnect.com/content/bpl/bjet/2008/00000039/00000005/art00013"
	doi = "doi:10.1111/j.1467-8535.2007.00794.x"
}