TY  - RPRT
TI  - State-variable models of structures having rigid-body modes
AU  - Craig, Roy R., Jr.
AU  - Su, Tsu-Jeng
AU  - Ni, Zhenhua
PY  - 1990
UR  - https://ntrs.nasa.gov/citations/19910034414
ID  - 19910034414
ER  -