@Unpublished{silva10:_decom_tool_event_b, author = {Renato Silva and Carine Pascal and Thai Son Hoang and Michael Butler}, title = {Decomposition Tool for {Event-B}}, booktitle = {Workshop on Tool Building in Formal Methods - ABZ2010 Conference}, year = 2010, month = feb, note = {\url{http://eprints.ecs.soton.ac.uk/18427/}} }