1. a GeoSyntec Consultants, 4207 Rhoda Drive, Baton Rouge, LA 70816, Tel: 225-612-2542, Fax: 225-293-0196, E-mail: wbrady@geosyntec.com
2. b Virginia Polytechnic Institute and Univ., 236 Smyth Hall, Blacksburg, VA 24061-0404, Tel: 540-231-8943, Fax: 540-231-3431, E-mail: eick@vt.edu
3. c Utah State University, 4820 Old Main Hill, Logan, UT 84322-4820, Tel: 435-797-0411, Fax: 435-797-3376, E-mail: grossl@cc.usu.edu
4. d Sandia National Laboratories, P.O. Box 5800, Albuquerque, NM 87185–0750, Tel: 505-844-7146, Fax: 505-844-7354, E-mail: pvbrady@sandia.gov