Jason W. A. Selby Fraser P. Ruffell Mark Giesbrecht Michael W. Godfrey Examining the Effects of Global Data Usage on Software Maintainability. 60-69 2007 conf/wcre/2007 WCRE http://doi.ieeecomputersociety.org/10.1109/WCRE.2007.27 db/conf/wcre/wcre2007.html#SelbyRGG07