TY  - BOOK
AU  - Blank, J 
AU  - Janssen, T G M 
AU  - Drummen, M M H 
TI  - Software engineering: : Methods and techniques 
SN  - 0-471-88503-7
PY  - 1983///
CY  - New York: 
PB  - John Wiley & sons, 
KW  - Computer science
KW  - Software engineering
ER  -