Eduardo Figueiredo Jon Whittle Alessandro F. Garcia ConcernMorph: metrics-based detection of crosscutting patterns. 299-300 2009 ESEC/SIGSOFT FSE http://doi.acm.org/10.1145/1595696.1595751 conf/sigsoft/2009 db/conf/sigsoft/fse2009.html#FigueiredoWG09