1. Department of Civil & Environmental Engineering; Rice University; 6100 Main St. Houston TX USA
2. Department of Civil & Environmental Engineering, Department of Industrial Engineering; Universidad de los Andes; Cra 1 Este No 19A - 40 Bogotá Colombia
3. Department of Civil & Environmental Engineering; Universidad de los Andes; Cra 1 Este No 19A - 40 Bogotá Colombia
4. Department of Industrial Engineering; Universidad de los Andes; Cra 1 Este No 19A - 40 Bogotá Colombia