TY  - RPRT
TI  - On the symbolic manipulation and code generation for elasto-plastic material matrices
AU  - Chang, T. Y.
AU  - Saleeb, A. F.
AU  - Wang, P. S.
AU  - Tan, H. Q.
PY  - 1991
UR  - https://ntrs.nasa.gov/citations/19920002157
ID  - 19920002157
ER  -