TY - BOOK AU - Bloomfield R ED - VDM-Europe Symposium( 2nd : 1988 : Dublin ) ED - VDM-Europe Symposium 2nd TI - VDM -a formal method at work : proceedings SN - 3-540-50214-9 U1 - 5.3 PY - 1988/// CY - Berlin PB - Springer Verlag KW - software development KW - VDM ER -