8DAFALIAS L, YANNIS F. Bounding surface plasticity. I Mathematical foundation and hypoplasticity[J]. Journal of Engineering Mechanics, 1986, 112(9): 966 - 987.
9DAFALIAS L, HERRMANN Y. Bounding surface plasticity. I1 Application to isotropic cohesive soils[J]. Journal of Engineering Mechanics, 1986, 112(21): 1 263 - 1 29l.
10BORJA R I, LEE S R. Cam-clay plasticity, part 1 : Implicit integration of elastoplastic constitutive relations[J]. Computer Methods in Applied Mechanics and Engineering, 1990, 78(1): 49 - 72.