TY  - RPRT
TI  - A solid-inclusion borehole probe to determine three-dimensional stress changes at a point in a rock mass
AU  - Thomas C. Nichols
AU  - John F. Abel
AU  - Fitzhugh T. Lee
PY  - 1968
DO  - 10.3133/b1258c
UR  - https://pubs.usgs.gov/publication/b1258C
ID  - b1258C
ER  -