Oana Agrigoroaiei Gabriel Ciobanu Non-interleaving Semantics with Causality for Nondeterministic Dataflow. 66-80 2008 ICTAC http://dx.doi.org/10.1007/978-3-540-85762-4_5 conf/ictac/2008 db/conf/ictac/ictac2008.html#AgrigoroaieiC08