TY  - RPRT
TI  - A finite element method for the plastic bending analysis of structures
AU  - Armen, H., Jr.
AU  - Levine, H. S.
AU  - Pifko, A.
PY  - 1968
UR  - https://ntrs.nasa.gov/citations/19680028492
ID  - 19680028492
ER  -