@article {465, title = {Variability Modeling in the Systems Software Domain}, year = {2012}, note = {Superseded by: 558}, institution = {Generative Software Development Laboratory, University of Waterloo}, type = {Technical Report}, issn = {GSDLAB-TR 2012-07-06, Version 2}, attachments = {http://gsd.uwaterloo.ca/sites/default/files/vm-2012-berger.pdf}, author = {Thorsten Berger and She, Steven and Lotufo, Rafael and W{\k a}sowski, Andrzej and Krzysztof Czarnecki} }