TY  - RPRT
TI  - A microcomputer-based data acquisition and control system for the direct shear, ring shear, triaxial shear, and consolidation tests
AU  - Philip S. Powers
PY  - 1983
DO  - 10.3133/ofr83491
UR  - https://pubs.usgs.gov/publication/ofr83491
ID  - ofr83491
ER  -