TY  - BOOK
AU  - Van Hee,K.M.
TI  - Information systems engineering: a formal approach 
SN  - 0521455146 :
U1  - 620.001171 
PY  - 1994///
CY  - Cambridge
PB  - The University Press
KW  - Systems engineering
KW  - Information technology
N1  - Bibliography : p. 374-390
ER  -