1. Professor, Dept. of Civil Engineering, Univ. of Nebraska-Lincoln, Lincoln, NE 68588-0531.
2. Engineer, HNTB Corp., 7450 W. 150th St., Suite 400, Overland Park, KS 66213.
3. Research Engineer, Dept. of Civil Engineering, Univ. of Nebraska-Lincoln, Lincoln NE 68588-0531.
4. Senior Engineer, Thornton Tomasetti, 51 Madison Ave., New York, NY 10010.