Tom Mens Michel Wermelinger Stéphane Ducasse Serge Demeyer Robert Hirschfeld Mehdi Jazayeri Challenges in Software Evolution. 13-22 2005 conf/iwpse/2005 IWPSE http://doi.ieeecomputersociety.org/10.1109/IWPSE.2005.7 db/conf/iwpse/iwpse2005.html#MensWDDHJ05