\begin{thebibliography}{}
\itemsep0pt

\bibitem[Biondi, 2006]{biondi:3056}
Biondi, B.,  2006, Prestack exploding-reflectors modeling for migration
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\bibitem[Fei et~al., 2009]{fei:2283}
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\bibitem[Guerra et~al., 2009]{guerra:3964}
Guerra, C., Y. Tang, and B. Biondi,  2009, Wave-equation tomography using
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\bibitem[Liu et~al., 2006]{liu01}
Liu, F., D.~W. Hanson, N.~D. Whitmore, R.~S. Day, and R.~H. Stolt,  2006,
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\bibitem[Romero et~al., 2000]{romero}
Romero, L., D. Ghiglia, C. Ober, and S. Morton,  2000, Phase encoding of shot
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\bibitem[Sava and Biondi, 2004]{sava2004a}
Sava, P. and B. Biondi,  2004, Wave-equation migration velocity analysis-{I}:
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\bibitem[Shen and Symes, 2008]{shen:VE49}
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\bibitem[Symes and Carazzone, 1991]{symes:654}
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\end{thebibliography}
