References

• Beydoun, W. B., and Mendes, M., 1989, Elastic ray-Born l2 migration/inversion: Geophys. J., 97, 151-160.

• Beydoun, W. B., Delvaux, J., Mendes, M., Noual, G., and Tarantola, A., 1989, Practical aspects of an elastic migration/inversion of crosshole data for reservoir characterization: A Paris basin example: Geophysics, 54, 1587-1595.

• Bregman, N. D., Bailey, R. C., and Chapman, C. H., 1989, Crosshole seismic tomography: Geophysics, 54, 200-215.

• Chang, W. F., and McMechan, G. A., 1986, Reverse-time migration of offset vertical seismic profiling data using the excitation-time imaging condition: Geophysics, 51, 67-84.

• Chang, W. F., and McMechan, G. A., 1987, Elastic reverse-time migration: Geophysics, 52, 1365-1375.

• Chen, S. T., Zimmerman, L. J., and Tugnait, J. K., 1990, Subsurface imaging using reversed vertical seismic profiling and crosshole tomographic methods: Geophysics, 55, 1478-1487.

• Claerbout, J. F., 1970, Coarse grid calculations of waves in inhomogeneous media with application to delineation of complicated seismic structure: Geophysics, 35, 407-418.

• Claerbout, J. F., 1976, Fundamentals of Geophysical Data Processing: McGraw-Hill.

• Claerbout, J. F., 1985, Imaging the Earth's Interior: Blackwell Scientific.

• Claerbout, J. F., 1991, Earth Soundings Analysis: Processing versus Inversion: Blackwell Scientific.

• Clayton, R. W., and Engquist, B., 1977, Absorbing boundary conditions for acoustic and elastic wave equations: Bull. Seism .Soc. Am., 67, 1529-1540.

• Cunha Filho, C. A., 1992, Elastic modeling and migration in earth models: Ph. D. dissertation: Dept. of Geophysics, Stanford University.

• Dablain, M., 1986, The application of high-order differencing to the scalar wave equation: Geophysics, 51, 54-66.

• Gray, S., and Lines, L., 1992, Cross-borehole tomographic migration: Amoco Research Center.

• Harris, J. M., 1988, Cross-well seismic measurements in sedimentary rocks: 58th Ann. Internat. Mtg., Soc. Explor. Geophys., Expanded Abstracts, 147-150.

• Hu, L. Z., McMechan, G. A., and Harris, J. M., 1988, Acoustic pre-stack migration of cross-hole data: Geophysics, 53, 1015-1023.

• Jacobs, A., 1982, The pre-stack migration of profiles: Ph. D. dissertation: Dept. of Geophysics, Stanford University.

• Lazaratos, S. K., Rector, J. W., Harris, J. M., and Van Schaack, M., 1991, High-resolution imaging with cross-well reflection data: 61st Ann. Internat. Mtg., Soc. Explor. Geophys., Expanded Abstracts, 107-110.

• Lines, L., 1991, Applications of tomography to borehole and reflection seismology: Geophysics: the leading edge of exploration, 10, no. 7, 11-17.

• Luo, Y., and Schuster, G. T., 1991, Wave-equation traveltime inversion: Geophysics, 56, 645-653.

• McMechan, G. A., 1983, Migration by extrapolation of time-dependent boundary values: Geophys. Prosp., 31, 413-420.

• McMechan, G. A., 1985, Synthetic finite-offset vertical seismic profiles for laterally varying media: Geophysics, 50, 627-636.

• McMechan, G. A., Harris, J. M., and Anderson, L. M., 1987, Cross-hole tomography for strongly variable media with application to scale model data: Bull. Seism. Soc. Am., 77, 1945-1960.

• Mo, L., 1992, Gaussian beam migration: SEP-75, 65-84.

• Pratt, R. G., and Worthington, M. H., 1988, The application of diffraction tomography to cross-hole seismic data: Geophysics, 53, 1284-1294.

• Reshef, M., and Kosloff, D., 1986, Migration of common-shot gathers: Geophysics, 51, 324-331.

• Turner, G., 1990, Aliasing in the tau-p transform and the removal of spatially aliased coherent noise: Geophysics, 55, 1496-1503.

• Van Trier, J., and Symes, W. W., 1990, Upwind finite-difference calculation of traveltimes: SEP-65, 41-58.

• Yilmaz, O., 1987, Seismic data processing: Soc. Expl. Geophys.

• Zhang, L., Claerbout, J. F., and Ji, J., 1992, Seismic trace interpolation beyond spatial aliasing: SEP-73, 185-201.

• Zhu, X., and McMechan, G. A., 1988, Acoustic modeling and migration of stacked cross-hole data: Geophysics, 53, 492-500.

APPENDIX A