Kennett, B. L.N.2025-03-222025-03-22Scopus:84984455332https://dspace-test.anu.edu.au/handle/1885/733729486A modification of the reflectivity method for calculating theoretical seismograms is introduced. This technique enables allowances to be made for differing crustal structures beneath the source and the receiver. The method has been applied to the 1971 long range refraction profile across France, and it is shown that the observed effects can only be accounted for by structure in the upper mantle.11English197510.1111/j.1365-246X.1975.tb05880.xhttp://www.scopus.com/inward/record.url?scp=84984455332&partnerID=8YFLogxK