TY  - RPRT
TI  - In situ geomechanics of crystalline and sedimentary rocks; Part IV, continued field testing of the modified U.S. Geological Survey 3-D borehole stress probe
AU  - Thomas C. Nichols
PY  - 1983
DO  - 10.3133/ofr83750
UR  - https://pubs.usgs.gov/publication/ofr83750
ID  - ofr83750
ER  -