TY  - RPRT
TI  - On the sharpness of cracks compared with Wells' COD
AU  - Roberts, E., Jr.
AU  - Srawley, J. E.
AU  - Swedlow, J. L.
PY  - 1970
UR  - https://ntrs.nasa.gov/citations/19700032784
ID  - 19700032784
ER  -