1. New Mexico Tech; Socorro NM USA
2. New Mexico Bureau of Geology and Mineral Resources; Socorro NM USA
3. United States Geological Survey; Denver CO USA
4. Los Alamos National Laboratory; Los Alamos NM USA
5. Indian Statistical Institute; Kolkata India
6. Georg-August-Universität Göttingen; Göttingen Germany
7. University of New Mexico; Albuquerque NM USA