TY  - RPRT
TI  - A computer program in BASIC for construction of two-layer, seismic refraction forward models within which elevation and thickness of the upper layer change and velocities vary laterally within both layers
AU  - W.P. Hasbrouck
PY  - 1990
DO  - 10.3133/ofr90320
UR  - https://pubs.usgs.gov/publication/ofr90320
ID  - ofr90320
ER  -