TY  - RPRT
TI  - Approximation to cutoffs of higher modes of Rayleigh waves for a layered earth model
AU  - Y. Xu
AU  - J. Xia
AU  - R. D. Miller
PY  - 2009
DO  - 10.1007/s00024-008-0443-4
UR  - https://pubs.usgs.gov/publication/70036006
ID  - 70036006
ER  -