@article{NPCdke07,
  Author = {G.{}~Navarro and R.~Paredes and E.~Ch{\'a}vez},
  Note = {doi:10.1016/j.datak.2007.05.002},
  Journal = {Data \& Knowledge Engineering},
  Month = {December},
  Number = {3},
  Pages = {820--854},
  Publisher = {Elsevier Science Publishers B. V.},
  Title = {$t$-Spanners for Metric Space Searching},
  Volume = {63},
  Year = {2007},
  Bdsk-Url-1 = {http://dx.doi.org/10.1016/j.datak.2007.05.002}}