@misc{indiciae4732b5e74753,
  title = {Long-term variations in total solar irradiance},
  author = {Pap, Judit M. and Willson, Richard C. and Froelich, Claus and Donnelly, Richard F. and Puga, Larry},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19950046571},
  note = {Source identifier: 19950046571}
}