@article{2009,
  author = {R. Howe and J. Christensen-Dalsgaard and F. Hill and R. Komm and J. Schou and M. Thompson and Juri Toomre},
  title = {Temporal variations in solar rotation at the bottom of the convection zone: The current status},
  year = {2007},
  journal = {Advances in Space Research},
  volume = {40},
  pages = {915-918},
  month = {2007-01},
  issn = {02731177},
  doi = {10.1016/j.asr.2006.12.047},
}