@book{DEC+98,
title = {Data Refinement Model-Oriented Proof methods and their Comparison },
author = {De Roever, Willem-Paul and Engelhardt, Kai and Coenen, Jos and Buth, Karl-Heinz and Gardiner, Paul and Lakhnech, Yassine and Stomp, Frank},
year = {1998},
publisher = {Cambridge University Press},
team = {DCS},
}