1. Professor and Canada Research Chair in Earthquake Engineering, Group for Research in Structural Engineering, Dept. of Civil Geological and Mining Engineering, École Polytechnique, Montreal, Canada H3C 3A7.
2. Research Associate, Group for Research in Structural Engineering, École Polytechnique, Montreal, Canada H3C 3A7.
3. Associate Professor, Dept. of Civil Eng., Univ. of Toronto, Toronto, Canada M5S 1A4.