Foott, R., and C. Ladd. "Undrained Settlement of Plastic and Organic Clays." Journal of the Geotechnical Engineering Division 107, no. GT8 (August 1981): 1079-1094.
Jamiolkowski, M., C. Ladd, J. Germaine, and R. Lancellotta. "New Developments in Field and Laboratory Testing of Soils." Proceedings of the 11th International Conference on Soil Mechanics and Foundation Engineering, San Francisco, 1995.
Koutsoftas, D., and C. Ladd. "Design Strengths for an Offshore Clay." Journal of Geotechnical Engineering 111, no. 3 (March 1985)
Ladd, C., R. Foott, K. Ishihara, F. Schlosser, and H. Poulos. "Stress-Deformation and Strength Characteristics." Proceedings of the 9th International Conference on Soil Mechanics and Foundation Engineering, Tokyo, 1977.
Ladd, C., and R. Foott. "New Design Procedure for Stability of Soft Clays." Joumal of the Geotechnical Engincening Dision 100, no. GT (July 1974): 763-786.
Ladd, C. "Stress-Strain Behavior of Saturated Clay and Basic Strength Principles." Research in Earth Physics, Research Report R64-17, Phase Report 1, April 1964. (PDF - 2.3 MB)
Ladd, C., and E. Kinner. "The Strength of Clays at Low Effective Stress." Research in Earth Physics, Research Report R67-4, Phase Report 8, January 1967.