Pre One:Kuang, W., Zhang, L., and J. Zhang, 2011, Validity of acoustic early-arrival waveform tomography for near-surface imaging, SEG Technical Program Expanded Abstracts 2011, 1450-1453.

Next One: Zhang, J., 2006, Refraction migration: imaging multiple refractors automatically, Expanded Abstract, SEG 71st Annual Meeting in New Orleans, Louisiana, p2426.