@article { <br/>Chi-2008-OTD,<br/>author= "M.T.H. Chi, M. Roy, R.G.M. Hausmann",<br/>title= "Observing Tutorial Dialogues Collaboratively: Insights about Human Tutoring Effectiveness from Vicarious Learning",<br/>journal= "Cognitive Science",<br/>note= "In Press",<br/>year= "2008",<br/>}