@inproceedings{VDME-1987-Jones87a,
	author        = "Cliff B. Jones",
	booktitle     = "{Proceedings of the First European Symposium on Vienna Development Method: A Formal Method at Work}",
	doi           = "10.1007/3-540-17654-3_15",
	isbn          = "3-540-17654-3",
	pages         = "260--286",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{VDM Proof Obligations and their Justification}",
	volume        = 252,
	year          = 1987,
}