1. Prof., Dept. of Civ., Struct., and Envir. Engrg., State Univ. of New York, 239 Ketter Hall, Amherst, NY 14260.
2. Grad. Student, Dept. of Civ. Engrg., State Univ. of New York, 239 Ketter Hall, Amherst, NY.
3. Prof. and Head, Dept of Civ. and Geological Engrg., The Univ. of Manitoba, Manitoba, Canada.