@article{359,
  author = {B. Anderson and P. Haljan and Carl Wieman and Eric Cornell},
  title = {Vortex Precession in Bose-Einstein Condensates: Observations with Filled and Empty Cores},
  year = {2000},
  journal = {Physical Review Letters},
  volume = {85},
  pages = {2857-2860},
  month = {2000-10},
  issn = {0031-9007},
  doi = {10.1103/PhysRevLett.85.2857},
}