11/2010-11/2014, PhD, supervised by Satish Singh. I arrived at IPGP when he was at the end of the second year and he was working for the wavefield injection method in Cartesian box. Since it was one of my postdoc projects in Toulouse, it was natural to work with him and Dmitry helped the first year Shihao’s PhD thesis later on. He is now a research professor at Kansas Geological Survey.