@misc{indiciae550a61f1b8a1,
  title = {A new solar cycle model including meridional circulation},
  author = {Wang, Y.-M. and Sheeley, N. R., Jr. and Nash, A. G.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920033894},
  note = {Source identifier: 19920033894}
}