TY - RPRT TI - Groundwater-level trends in the U.S. glacial aquifer system, 1964-2013 AU - Glenn A. Hodgkins AU - Robert W. Dudley AU - Martha G. Nielsen AU - Benjamin Renard AU - Sharon L. Qi PY - 2017 DO - 10.1016/j.jhydrol.2017.07.055 UR - https://pubs.usgs.gov/publication/70192341 ID - 70192341 ER -