TY  - RPRT
TI  - A structure-based model of semantic integrity constraints for relational data bases
AU  - Rasdorf, William J.
AU  - Ulberg, Karen J.
AU  - Baugh, John W., Jr.
PY  - 1987
UR  - https://ntrs.nasa.gov/citations/19870049922
ID  - 19870049922
ER  -