TY - BOOK AU - TI - LECTURE NOTES IN COMPUTER SCIENCE ; VDM '90 VDM AND Z -- FORMAL METHODES IN SOFTWARE DEVELOPMENT: V.428 SN - 3540525130 U1 - 001.64 PY - 1990/// CY - PB - Springer-Verlag, Berlin UR - http://link.springer.com/bookseries/558 ER -