TY - RPRT TI - Inversion of high frequency surface waves with fundamental and higher modes AU - J. Xia AU - R. D. Miller AU - C.B. Park AU - G. Tian PY - 2003 DO - 10.1016/s0926-9851(02)00239-2 UR - https://pubs.usgs.gov/publication/70026218 ID - 70026218 ER -