1. Department of Civil and Environmental Engineering, School of Engineering and Applied Science, University of Virginia, P.O. Box 400742, Charlottesville, VA 22904-4742
2. Noblis, Inc., Suite 700E, 600 Maryland Avenue, SW, Washington, DC 20024
3. Civil, Construction, and Environmental Engineering, College of Engineering, Iowa State University, 352 Town Engineering, Ames, IA 50011
4. Geodesy and Geomatic Engineering, University of New Brunswick, P.O. Box 4400, Fredericton, New Brunswick E3B 5A3, Canada