@inbook {hatzilygeroudis2004pass,
	title = {PASS: An Expert System with Certainty Factors for Predicting Student Success},
	booktitle = {Knowledge-Based Intelligent Information and Engineering Systems},
	year = {2004},
	pages = {292{\textendash}298},
	publisher = {Springer},
	organization = {Springer},
	author = {Hatzilygeroudis, Ioannis and Karatrantou, Anthi and Pierrakeas, C}
}
