1. Center for Experimental Study of Subsurface Environmental Processes Department of Civil and Environmental Engineering Colorado School of Mines Golden CO USA
2. U.S. Army Corps of Engineers Engineering Research and Development Center Geotechnical and Structures Laboratory Vicksburg MS USA
3. Department of Mathematics Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague Prague Czech Republic
4. Geology and Geophysics Department University of Wyoming Laramie WY USA