TY  - BOOK
AU  - "GAMMA ERICH
TI  - DESIGN PATTERNS ELEMENTS OF REUSABLE OBJECTIVE ORIENTED SOFTWARE 
SN  - NULL
U1  - 005.1/GAM/HEL 
PY  - 0000///0
CY  - 0
PB  -  HELM RICHARD
KW  - 356.95
ER  -