TY  - BOOK
AU  - Butler, Thomas G.
AU  - Michel, Deouglas.
TI  - Nastran
U1  - 629.41 
PY  - 1971///
CY  - Washington D C
PB  - National Aeronautics and Space Administration
KW  - Structural integrity
KW  - Stress analysis
KW  - Modal analysis
ER  -