Anisotropy in geometrically non-linear elasticity with generalized Seth-Hill strain tensors projected to invariant subspaces
R. Mahnken, Communications in Numerical Methods in Engineering (2005) 405–418.

Improved implementation of an algorithm for non-linear isotropic/kinematic hardening in elastoplasticity
R. Mahnken, Communications in Numerical Methods in Engineering 15 (2002) 745–754.