@article {607,
	title = {Where do Configuration Constraints Stem From? An Extraction Approach and an Empirical Study},
	year = {2015},
	institution = {Generative Software Development Laboratory, University of Waterloo},
	issn = {GSDLAB-TR 2015-01-27},
	attachments = {http://gsd.uwaterloo.ca/sites/default/files/constraints-2015-nadi.pdf},
	author = {Sarah Nadi and Thorsten Berger and K{\"a}stner, Christian and Krzysztof Czarnecki}
}