1. “A Theory of Viscoplasticity Without a Yield Surface, Part I, general theory”;Valanis;Archives of Mechanics,1971
2. “Endochronic Theory of Cyclic Plasticity with Applications”;Valanis;Journal of Applied Mechanics American Society of Mechanical Engineers,1984
3. “On the Uniqueness of Solutions of the Initial Value Problem in Softening Materials”;Valanis;Journal of Applied Mechanics,1985
4. “On the Uniqueness and Stability of Endochronic Theories of Material Behavior”;Sandler;Journal of Applied Mechanics,1978
5. Some Comments on the Endochronic Theory of Plasticity;Rivlin,1979