TY  - RPRT
TI  - Laboratory hydraulic fracturing experiments in intact and pre-fractured rock
AU  - Mark D. Zoback
AU  - F. Rummel
AU  - R. Jung
AU  - C.B. Raleigh
PY  - 1977
DO  - 10.1016/0148-9062(77)90196-6
UR  - https://pubs.usgs.gov/publication/70011115
ID  - 70011115
ER  -