TY  - RPRT
TI  - Modified Oscillograph for Impacting Composite Materials
AU  - Penn, B.
AU  - Ledbetter, F. E., III
AU  - Clemons, J. M.
AU  - Daniels, J.
AU  - White, W.
PY  - 1984
UR  - https://ntrs.nasa.gov/citations/19830000406
ID  - 19830000406
ER  -