Hossein Hojjat Marjan Sirjani Mohammad Reza Mousavi Jan Friso Groote 216-222 2007 conf/acsd/2007 ACSD http://doi.ieeecomputersociety.org/10.1109/ACSD.2007.62 db/conf/acsd/acsd2007.html#HojjatSMG07