1. Graduate Research Assistant, Dept. of Civil, Structural, and Environmental Engineering, State Univ. of New York, Buffalo, NY 14260.
2. Professor and Chairman, Dept. of Civil, Structural, and Environmental Engineering, State Univ. of New York, Buffalo, NY 14260.
3. Professor and Chairman, Dept. of Earthquake Engineering, Kandilli Observatory and Earthquake Research Institute, Bogazici Univ., Istanbul 81220, Turkey.
4. Assistant Professor, Dept. of Earthquake Engineering, Kandilli Observatory and Earthquake Research Institute, Bogazici Univ., Istanbul 81220, Turkey.
5. Assistant Professor, Dept. of Civil Engineering and Construction, Bradley Univ., Peoria, IL 61625.