Composing Event Constraints in State-Based Specification.

Tommaso Bolognesi Composing Event Constraints in State-Based Specification. 13-32 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3235&spage=13 2004 conf/forte/2004 FORTE db/conf/forte/forte2004.html#Bolognesi04