TY - RPRT TI - Lognormal kriging for the assessment of reliability in groundwater quality control observation networks AU - L. Candela AU - Ricardo A. Olea AU - E. Custodio PY - 1988 DO - 10.1016/0022-1694(88)90006-6 UR - https://pubs.usgs.gov/publication/70014342 ID - 70014342 ER -