TY  - RPRT
TI  - On the expected relationships among apparent stress, static stress drop, effective shear fracture energy, and efficiency
AU  - N.M. Beeler
AU  - T.-F. Wong
AU  - S.H. Hickman
PY  - 2003
DO  - 10.1785/0120020162
UR  - https://pubs.usgs.gov/publication/70025418
ID  - 70025418
ER  -