TY - RPRT TI - A comparison of the coupled fresh water-salt water flow and the Ghyben-Herzberg sharp interface approaches to modeling of transient behavior in coastal aquifer systems AU - H.I. Essaid PY - 1986 DO - 10.1016/0022-1694(86)90012-0 UR - https://pubs.usgs.gov/publication/70015650 ID - 70015650 ER -