TY  - BOOK
AU  - R. J. A. Buhr
AU  - R. S. Casselman
TI  - Use case maps for object-oriented systems
SN  - 0-13-456542-8
U1  -  005.12028 
PY  - 1996///
CY  - Upper Saddle River,USA
PB  - Prentice Hall
KW  - Computer-aided software engineering
ER  -