TY  - RPRT
TI  - Unified constitutive material models for nonlinear finite-element structural analysis
AU  - Kaufman, A.
AU  - Laflen, J. H.
AU  - Lindholm, U. S.
PY  - 1985
UR  - https://ntrs.nasa.gov/citations/19850057618
ID  - 19850057618
ER  -