@article{Liu09bmcIDSS,
  author    = {Yu-Shen Liu and Yi Fang and Karthik Ramani},
  title     = {{IDSS: deformation invariant signatures for molecular shape comparison}},
  journal   = {BMC Bioinformatics},
  volume    = {10},
  number    = {157},
  pages     = {1--14},
  year      = {2009},
}