@misc{indiciaebcde9b304b92, title = {A two-dimensional, finite-difference model of the high plains aquifer in southern South Dakota}, author = {K.E. Kolm and H. L. Case}, year = {1983}, doi = {10.3133/wri834175}, url = {https://pubs.usgs.gov/publication/wri834175}, note = {Source identifier: wri834175} }