TY - RPRT TI - Steady shape analysis of tomographic pumping tests for characterization of aquifer heterogeneities AU - Geoffrey C. Bohling AU - Xiaoyong Zhan AU - James J. Butler AU - Li Zheng PY - 2002 DO - 10.1029/2001wr001176 UR - https://pubs.usgs.gov/publication/70024029 ID - 70024029 ER -