TY  - RPRT
TI  - A solid inclusion borehole probe to determine 3-dimensional stress changes at a point in a rock mass
AU  - Thomas C. Nichols
AU  - John F. Abel
AU  - Fitzhugh T. Lee
PY  - 1967
DO  - 10.3133/ofr67169
UR  - https://pubs.usgs.gov/publication/ofr67169
ID  - ofr67169
ER  -