TY  - BOOK
AU  - Anderson, Troels
AU  - Christiansen, Henning
AU  - Larsen, Henrick
TI  - Flexible Query Answering Systems
SN  - 0792380010
PY  - 1997///
CY  - Boston
PB  - Kluwer Academic Publishers
KW  - Query Amswering Systems
ER  -