TY  - BOOK
AU  - Huth,Michael
AU  - Ryan,Mark
TI  - Logic in computer science: modelling and reasoning about systems 
SN  - 0521656028
PY  - 2000///
CY  - Cambridge, [England]
PB  - Cambridge University Press
KW  - Computer logic
N1  - Includes bibliographical references (p. 375-377)
ER  -