1. Preliminary evaluation of GPR for nickel laterite exploration
2. Hatton, L., M.H. Worthington, and J. Makin, 1986, Seismic data processing: theory and practice: Blackwell Scientific Publications.
3. Higgs, W. G., and Y. Luo. 1998, Method for geophysical processing and interpretation using instantaneous phase and its derivatives and their derivatives: U.S. Patent 5,724,309.
4. Kanasewich, E. R., 1981, Time sequence analysis in geophysics, 3rd edition: University of Alberta Press.