1. Ph.D. Candidate, Dept. of Building Construction, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
2. Ph.D. Student, Dept. of Building Construction, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
3. Assistant Professor, Dept. of Building Construction, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
4. Professor, Dept. of Building Construction, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.