@misc{indiciae943f7637622a,
  title = {Do faculae blanket sunspots?},
  author = {Schatten, Kenneth H. and Orosz, Jerry and Mayr, Hans G.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900030596},
  note = {Source identifier: 19900030596}
}