TY  - BOOK
AU  - Belnap,Nuel D.
AU  - Steel,Thomas B.
TI  - The logic of questions and answers
SN  - 0300019629 :
U1  - 160 
PY  - 1976///
CY  - New Haven
PB  - Yale University Press
KW  - Question (Logic)
KW  - Question-answering systems
KW  - Formal languages
KW  - Philosophy
N1  - Bibliography : p. 155-209
ER  -