TY  - RPRT
TI  - Comparing geotechnical to geologic estimates for past overburden in the Pierre-Hayes, South Dakota area: an argument for in-situ pressuremeter determination ( USA).
AU  - D. S. Collins
AU  - T. C. Nichols
PY  - 1987
UR  - https://pubs.usgs.gov/publication/70014789
ID  - 70014789
ER  -