1. Carathéodory, C., & Schmidt, E. (1923). Über die Hencky-Prandtlschen Kurven. Zeitschrift für Angewandte Mathematik und Mechanik, 3, 468–475.
2. Chakrabarty, J. (2006). Theory of plasticity (3rd ed.). Oxford, UK: Butterworth-Heinemann.
3. Chan, A. S. L. (1960). The design of Michell optimum structures. Cranfield: The College of Aeronautics (Report 142).
4. Chan, H. S. Y. (1963). Optimum Michell frameworks for three parallel forces. Cranfield: The College of Aeronautics (Report AERO 167).
5. Chan, H. S. Y. (1964). Tabulation of some layouts and virtual displacement fields in the theory of Michell optimum structures. Cranfield: The College of Aeronautics (CoA Note Aero 161).