Tetsuo Hasegawa Yoshiaki Fukazawa Model Checking by Generating Observers from an Interface Specification Between Components. 526-538 2009 UNISCON http://dx.doi.org/10.1007/978-3-642-01112-2_53 conf/ista/2009 db/conf/ista/uniscon2009.html#HasegawaF09