@misc{indiciae103dafe43105,
  title = {Are secular correlations between sunspots, geomagnetic activity, and global temperature significant?},
  author = {Jeffrey J. Love and K. Mursula and V.C. Tsai and D. M. Perkins},
  year = {2011},
  doi = {10.1029/2011gl049380},
  url = {https://pubs.usgs.gov/publication/70036270},
  note = {Source identifier: 70036270}
}