TY  - RPRT
TI  - Surface wave tomography of North America and the Caribbean using global and regional broad-band networks: Phase velocity maps and limitations of ray theory
AU  - S. Godey
AU  - R. Snieder
AU  - A. Villasenor
AU  - H.M. Benz
PY  - 2003
DO  - 10.1046/j.1365-246x.2003.01866.x
UR  - https://pubs.usgs.gov/publication/70025993
ID  - 70025993
ER  -