TY - RPRT TI - A modification of the finite-difference model for simulation of two dimensional ground-water flow to include surface-ground water relationships AU - M.M. Ozbilgin AU - D.C. Dickerman PY - 1984 DO - 10.3133/wri834251 UR - https://pubs.usgs.gov/publication/wri834251 ID - wri834251 ER -