TY  - RPRT
TI  - A soft X-ray imaging system for satellite experiments.
AU  - Ballas, J.
AU  - Knapp, G.
AU  - Wiza, J.
AU  - Zehnpfennig, T.
PY  - 1968
UR  - https://ntrs.nasa.gov/citations/19680053566
ID  - 19680053566
ER  -