@misc{indiciaefaee657b6e01,
  title = {The effect of solar array degradation on electric propulsion spacecraft performance.},
  author = {Sauer, C. G., Jr. and Bourke, R. D.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720045277},
  note = {Source identifier: 19720045277}
}