1. Graduate Research Assistant, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Kansas, Lawrence, KS.
2. Associate Professor, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Kansas, Lawrence, KS.
3. Assistant Professor, Dept. of Civil, Construction, and Environmental Engineering, Iowa State Univ., Ames, IA.
4. Associate Professor, Dept. of Construction Management, Colorado State Univ., Fort Collins, CO.