Mihaela Gheorghiu Dimitra Giannakopoulou Corina S. Pasareanu Refining Interface Alphabets for Compositional Verification. 292-307 2007 conf/tacas/2007 TACAS http://dx.doi.org/10.1007/978-3-540-71209-1_23 db/conf/tacas/tacas2007.html#GheorghiuGP07