@misc{indiciaed0ce6561d60a,
  title = {Sun-as-a-star spectrum variability},
  author = {Livingston, William and Donnelly, Richard F. and Grigor'ev, Viktor and Demidov, M. L. and Lean, Judith and Steffen, Matthias and White, Oran R. and Willson, Richard L.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920053611},
  note = {Source identifier: 19920053611}
}