References

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• Cole, S., 1989, Iterative methods for three dimensional finite difference migration and modeling: SEP-60, 149-163.

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• Hale, D., 1990, 3-D depth migration via McClellan transformations, SEG Expanded Abstracts, 1325-1328.

• Hestenes, M.R., and Stiefel, E., 1952, Method of conjugate gradients for solving linear systems: J. Res. Nat. Bur. Stand. 49, 409-436.