Department of Civil, Environmental and Architectural Engineering, University of Colorado, Boulder, CO 80305 ; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309
Department of Civil, Environmental and Architectural Engineering, University of Colorado, Boulder, CO 80305 ; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309 ;
Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027 ;
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309 ;
Department of Civil Engineering, University of Seoul, Seoul, 151-742 ;