@article {Karahasanovic.2005.3,
	title = {Comprehension Strategies and Difficulties in Maintaining Object-Oriented Systems: an Explorative Study},
	journal = {Journal of Systems and Software},
	volume = {80},
	number = {11},
	year = {2005},
	pages = {1541-1559},
	author = {Karahasanovic, Amela and Annette Kristin {Levine} and Thomas, R.}
}
