%0 Journal Article %A French, W.S. %A Perkins, W.T. %T 3-D Migration to Zero Offset for a Constant Velocity Gradient %D 1991 %J , %V %@ 2214-4609 %C cp-316-00141 %R https://doi.org/10.3997/2214-4609-pdb.316.141 %I European Association of Geoscientists & Engineers, %X %U https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.316.141