@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} }