TY  - RPRT
TI  - Photon generators and engines for laser power transmission
AU  - Ahlstrom, H. G.
AU  - Hertzberg, A.
AU  - Johnston, E. W.
PY  - 1971
UR  - https://ntrs.nasa.gov/citations/19710037860
ID  - 19710037860
ER  -