1. Grad. Engr., Geotech. Div., Binnie & Partners, Westminster, London, England; formerly Grad. Student, Civ. Engrg. Dept., MIT, Cambridge, Mass.
2. Grad. Student, Civ. Engrg. Dept., MIT, Cambridge, Mass.
3. Assoc. Prof. of Civ. Engrg., MIT, Cambridge, Mass.