TY - RPRT TI - Shear-wave velocity model from Rayleigh wave group velocities centered on the Sacramento/San Joaquin Delta AU - Jon Peter B. Fletcher AU - Jemile Erdem PY - 2017 DO - 10.1007/s00024-017-1587-x UR - https://pubs.usgs.gov/publication/70192308 ID - 70192308 ER -