1. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS Novosibirsk Russia
2. Novosibirsk State University Novosibirsk Russia
3. Geophysical Institute University of Alaska Fairbanks Fairbanks AK USA
4. King Saud University Riyadh Saudi Arabia
5. National Research Institute of Astronomy and Geophysics Helwan Egypt
6. King Abdulaziz City of Science and Technology Riyadh Saudi Arabia