1. Institute of Mathematics; SB RAS; Novosibirsk Russia
2. Faculty of Science; University of Hradec Kralove; Hradec Kralove Czech Republic
3. Department of Exploration Geophysics; Curtin University; Perth Western Australia Australia
4. CSIRO; Perth Western Australia Australia
5. Institute of Petroleum Geology and Geophysics; SB RAS; Novosibirsk Russia
6. Department of Mechanics and Mathematics; Novosibirsk State University; Novosibirsk Russia
7. Institute of Computational Mathematics and Mathematical Geophysics; SB RAS; Novosibirsk Russia
8. Mathematics and Modelling Department; Kazakstan-Britan University of Technology; Alma-Ata Kazakstan