TY  - BOOK
AU  - Lehnert,Wendy G
TI  - The process of question answering: computer simulation of cognition 
SN  - 0470264853
PY  - 1978///
CY  - Hillsdale, N.J.
PB  - L. Erlbaum Associates
KW  - Question-answering systems
N1  - Includes bibliographical references and indexes
ER  -