author          = {Mira Kajko-Mattsson and Gerardo Canfora and Dan Chiorean and Arie van Deursen and Tuomas Ihme and Meir M. Lehman and Rupert Reiger and Torsten Engel and Josef Wernke},
	title           = {A Model of Maintainability - Suggestion for Future Research},
	booktitle       = {Software Engineering Research and Practice},
	publisher       = {CSREA Press},
	year            = {2006},
	editor          = {Hamid R. Arabnia and Hassan Reza},
	pages           = {436-441},
	isbn            = {1-932415-90-4},
	url             = {http://www.st.ewi.tudelft.nl/~arie/papers/SERP2006.pdf},
	group           = {SE}