@article{813441,
  author = {B Anderson and P Haljan and C Wieman and Eric Cornell},
  title = {Vortex Precession in Bose-Einstein Condensates: Observations With Filled and Empty Cores},
  year = {2000},
  number = {85},
  month = {2000-10-01 00:10:00},
  publisher = {Physical Review Letters},
  language = {en},
}