@proceedings {4455,
	title = {Qualitative reasoning techniques to support learning by teaching: The teachable agents project},
	journal = {The Fifteenth International Workshop on Qualitative Reasoning},
	year = {2001},
	publisher = {AAAI Press},
	address = {San Antonio, TX},
	author = {K Leelawong and Y. Wang and G. Biswas and N. Vye and J. Bransford and D. Schwartz}
}
