TY  - RPRT
TI  - Orthogonal mirror telescopes for x-ray astronomy
AU  - Chase, R. C.
AU  - Vanspeybroeck, L. P.
AU  - Zehnpfennig, T. F.
PY  - 1971
UR  - https://ntrs.nasa.gov/citations/19710045610
ID  - 19710045610
ER  -