%0 Journal Article %T On the nature of regional seismic phases—III. The influence of crustal heterogeneity on the wavefield for subduction earthquakes: the 1985 Michoacan and 1995 Copala, Guerrero, Mexico earthquakes %A Furumura, T. %A Kennett, B. L. N. %J Geophysical Journal International %V 135 %N 3 %P 1060-1084 %@ 0956-540X %D 1998-12-01 %I The Royal Astronomical Society %~ DeepDyve