Michael Butler Michael G. Hinchey María M. Larrondo-Petrie Formal Methods and Software Engineering, 9th International Conference on Formal Engineering Methods, ICFEM 2007, Boca Raton, FL, USA, November 14-15, 2007, Proceedings ICFEM Lecture Notes in Computer Science 4789 Springer 2007 978-3-540-76648-3 db/conf/icfem/icfem2007.html