TY  - BOOK
AU  - Ernst, George W.,
TI  - Gps: A case study in generality and problem solving by george w. ernst and allen newell
T2  - ACM monograph series
AV  - Q335 E73
PY  - 1969///
CY  - New York
PB  - Academic
KW  - Sistema de Posicionamiento Global
ER  -