@article{892636,
  author = {Kaushik Mitra and Carl Williams and Carlos Sa de Melo},
  title = {Vortices, Antivortices and Superfluid Shells Separating Mott-Insulating Regions},
  year = {2008},
  month = {2008-10-16 14:10:14},
  publisher = {Physical Review Letters},
  language = {en},
}