@inbook {kalles2006using,
	title = {Using genetic algorithms and decision trees for a posteriori analysis and evaluation of tutoring practices based on student failure models},
	booktitle = {Artificial Intelligence Applications and Innovations},
	year = {2006},
	pages = {9{\textendash}18},
	publisher = {Springer},
	organization = {Springer},
	author = {Kalles, Dimitris and Christos J. Pierrakeas}
}
