"Simultaneous acquisition of 3D surface seismic data and 3C, 3D VSP data"
P. E. Constance*, M. B. Holland, and S. L. Roche, Output Exploration, LLC. P. Bicquart, B. Bryans, S. Gelinsky, Baker Hughes; J. G. Ralph, and R. I. Bloor, Western Geophysical.
Figure 8: Same vertical section as shown in Figure 7 with the 3-D VSP image inserted into
the surface seismic data.
