@inbook {18363,
	title = {A support tool for teaching computer programming},
	booktitle = {Issues in software engineering educationIssues in software engineering education},
	year = {1989},
	month = {1989///},
	pages = {139 - 167},
	publisher = {Springer-Verlag New York, Inc.},
	organization = {Springer-Verlag New York, Inc.},
	address = {New York, NY, USA},
	isbn = {0-387-96840-7},
	url = {http://dl.acm.org/citation.cfm?id=73064.73074},
	author = {Zelkowitz, Marvin V and Kowalchack,B. and Itkin,D. and Herman,L.},
	editor = {Fairley,Richard and Freeman,Peter}
}
