Hironori Washizaki Nobukazu Yoshioka 1st International Workshop on Software Patterns and Quality (SPAQu'07). 557-558 2007 conf/apsec/2007 APSEC http://doi.ieeecomputersociety.org/10.1109/APSEC.2007.6 db/conf/apsec/apsec2007.html#WashizakiY07