1. Members, ASCE
2. Prof., Dept. of Civ. and Envir. Engrg., Michigan Technol. Univ., 1400 Townsend Dr., Houghton, MI 49931-1295.
3. Prof., Dept. of Civ. and Envir. Engrg., Michigan Technol. Univ., 1400 Townsend Dr., Houghton, MI.
4. Former Grad. Student, Dept. of Civ. and Envir. Engrg., Michigan Technol. Univ., 1400 Townsend Dr., Houghton, MI.