Bogdan Tomoyuki Nassu Takashi Nanya Interaction Faults Caused by Third-Party External Systems - A Case Study and Challenges. 59-74 2008 ISAS http://dx.doi.org/10.1007/978-3-540-68129-8_7 conf/isas/2008 db/conf/isas/isas2008.html#NassuN08