Walter Cazzola Sonia Pini Massimo Ancona Evolving Pointcut Definition to Get Software Evolution. 83-88 2004 conf/ecoop/2004ramse RAM-SE http://www.disi.unige.it/person/CazzolaW/RAM-SE04%20Proceedings/Cazzola%2C%20Pini%20and%20Ancona.pdf db/conf/ecoop/ramse2004.html#CazzolaPA04