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2. Seismic array evidence of a core boundary source for the Hawaiian linear volcanic chain;Kanasewich;J. Geophys. Res.,1973
3. Lateral heterogeneity in the earth's mantle;Davies;Nature,1972
4. Evidence for lateral heterogeneity in the deep mantle from seismic body wave amplitudes;Needham;Nature,1975
5. Vespa process for analysis of seismic signals;Davies;Nature,1971