title: specification and implementation of exceptions in workflow management systems. authors: stefano paraboschi , stefano ceri , fabio casati , giuseppe pozzi. venue: acm trans . database syst .. year: 1999.0
title: semantics for update rule programs and implementation in a relational database management system louiqa raschid , jorge lobo. authors: nan. venue: acm transactions on database systems ( tods ). year: 1996.0