MGDS References
Yang, Y., M.H. Ritzwoller, F. Lin, M.P. Moschetti, and N.M. Shapiro, "Structure of the crust and uppermost mantle beneath the western United States revealed by ambient noise and earthquake tomography", J. Geophys. Res., 113: , 2008, DOI 10.1029/2008JB005833. (View Reference)
