TY - RPRT TI - Insights into the use of time-lapse GPR data as observations for inverse multiphase flow simulations of DNAPL migration AU - R.H. Johnson AU - E. P. Poeter PY - 2007 DO - 10.1016/j.jconhyd.2006.08.003 UR - https://pubs.usgs.gov/publication/70033080 ID - 70033080 ER -