TY  - RPRT
TI  - Ophthalmic method and apparatus
AU  - Evvard, J. C.
AU  - Mcgannon, W. J.
AU  - Vargo, D. J.
PY  - 1973
UR  - https://ntrs.nasa.gov/citations/19730018335
ID  - 19730018335
ER  -