TY  - BOOK
AU  - Beus,Michael J.
AU  - Phillips,Earl L.
AU  - Waddell,Galen G.
ED  - United States.
TI  - Instrument to measure the initial deformation of rock around underground openings
T2  - Report of investigations
PY  - 1975///.]
CY  - [Washington]
PB  - United States. Dept. of the Interior, Bureau of Mines
KW  - Rock deformation.
KW  - Rock mechanics
KW  - Research
ER  -