@misc{indiciaea36b7255e3b7, title = {Documentation of UCODE; a computer code for universal inverse modeling}, author = {E. P. Poeter and M. C. Hill}, year = {1998}, doi = {10.3133/wri984080}, url = {https://pubs.usgs.gov/publication/wri984080}, note = {Source identifier: wri984080} }