TY  - RPRT
TI  - Double window viewing chamber assembly
AU  - Keller, V. W.
AU  - Owen, R. B.
AU  - Elkins, B. R.
AU  - White, W. T.
PY  - 1986
UR  - https://ntrs.nasa.gov/citations/19870004922
ID  - 19870004922
ER  -