@ARTICLE{PajarolaW2000J,
  author = {R. Pajarola and P. Widmayer},
  title = {{A}n {I}mage {C}ompression {M}ethod for {S}patial {S}earch},
  journal = {IEEE Transactions on Image Processing},
  year = {2000},
  volume = {9},
  pages = {357-365},
  number = {3}
}