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   @article{gjras86,
    title     = {Efficient Global Matrix Approach to the Computation of Synthetic Seismograms},
    author    = {Henrik Schmidt and G. Tango},
    journal   = {Geophys. J. R. Astr. Soc.},
    pages     = {331--359},
    volume    = {84},
    year      = {1986}}