Keiji Yamamoto Yutaka Ishikawa Toshihiro Matsui Portable Execution Time Analysis Method. 267-270 2006 conf/rtcsa/2006 RTCSA http://doi.ieeecomputersociety.org/10.1109/RTCSA.2006.49 db/conf/rtcsa/rtcsa2006.html#YamamotoIM06