TY  - BOOK
AU  - IFIP WG 2.6 Working Conference on Data Semantics (DS-1) ( Hasselt : 1985)
TI  - Database semantics [DS-1]: proceedings /ed. by T.B. Steel and R. Meersman
SN  - 044470048
U1  - 005.74 
PY  - 1986///
CY  - Amsterdam
PB  - N-H
ER  -