@inproceedings{ITiCSE-2009-HsiaoSB,
	author        = "I-Han Hsiao and Sergey A. Sosnovsky and Peter Brusilovsky",
	booktitle     = "{Proceedings of the 14th Conference on Innovation and Technology in Computer Science Education}",
	doi           = "10.1145/1562877.1563034",
	isbn          = "978-1-60558-381-5",
	pages         = "392",
	publisher     = "{ACM}",
	title         = "{Extending parameterized problem-tracing questions for Java with personalized guidance}",
	year          = 2009,
}