1. Assistant Professor, Dept. of Civil and Coastal Engineering, Univ. of Florida, P.O. Box 116580, Gainesville, FL 32611.
2. Assistant Professor, Dept. of Building, Civil and Environmental Engineering, Concordia Univ., BE-357, 1257 Guy St., Montreal PQ, Canada H3G 1M7.
3. Research Assistant, Dept. of Civil and Coastal Engineering, Univ. of Florida, P.O. Box 116580, Gainesville, FL 32611.