TY  - RPRT
TI  - FORTRAN computer program for calculation of stress-intensity factors, stresses, and displacements associated with a fluid-pressurized fracture near the Earth's surface
AU  - David D. Pollard
PY  - 1978
DO  - 10.3133/ofr78160
UR  - https://pubs.usgs.gov/publication/ofr78160
ID  - ofr78160
ER  -