TY  - RPRT
TI  - A multiple-objective optimal exploration strategy
AU  - G. Christakos
AU  - Ricardo A. Olea
PY  - 1988
DO  - 10.1016/0895-7177(88)90525-0
UR  - https://pubs.usgs.gov/publication/70014441
ID  - 70014441
ER  -