@conference{480,
  author = {R. Howe and Juri Toomre},
  title = {Interior solar-cycle changes detected by helioseismology},
  year = {2001},
  journal = {unknown},
  month = {2001-01},
  publisher = {Astronomical Society of the Pacific},
  isbn = {1-58381-069-2},
  url = {http://adsabs.harvard.edu/full/2001IAUS..203...40H},
  note = {JILA Pub. 6982},
}