1. Associate Professor, Dept. of Civil Engineering, Univ. of Sherbrooke, Sherbrooke, QC, Canada J1K 2RI; formerly, Senior Bridge Engineer, Jacobs Civil, 70 Wood Ave., Iselin, NJ 08830.
2. Professor, Dept. of Civil Engineering, Univ. of Sherbrooke, Sherbrooke, QC, Canada J1K 2R1.
3. Professor, Laboratoire Sols, Solides, Structures, Institut National Polytechnique de Grenoble, France 38041.