TY  - BOOK
AU  - Lauesen, Soren
TI  - Software requirements: styles and techniques 
SN  - 0201745704
PY  - 2002///
CY  - Harlow, Eng.
PB  -  Pearson Education
KW  - Computer software
KW  - Specifications
N1  - Includes bibliographical references and index
ER  -