TY  - RPRT
TI  - A TI-59 calculator program for computation of Schlumberger resistivity sounding curves for models with as many as 25 horizontal layers
AU  - Ahmed Samir M. El Kahwagy
PY  - 1981
DO  - 10.3133/ofr81160
UR  - https://pubs.usgs.gov/publication/ofr81160
ID  - ofr81160
ER  -