TY - RPRT TI - Approaches to the simulation of unconfined flow and perched groundwater flow in MODFLOW AU - Vivek Bedekar AU - Richard G. Niswonger AU - Kenneth Kipp AU - Sorab Panday AU - Matthew Tonkin PY - 2011 DO - 10.1111/j.1745-6584.2011.00829.x UR - https://pubs.usgs.gov/publication/70041749 ID - 70041749 ER -