TY - RPRT TI - A field assessment of the value of steady shape hydraulic tomography for characterization of aquifer heterogeneities AU - Geoffrey C. Bohling AU - James J. Butler AU - Xiaoyong Zhan AU - Michael D. Knoll PY - 2007 DO - 10.1029/2006wr004932 UR - https://pubs.usgs.gov/publication/70030005 ID - 70030005 ER -