@article{similarelementsandmetriclabelingon,
  title = {Similar Elements and Metric Labeling on Complete Graphs},
  author = {Pedro F. Felzenszwalb},
  year = {2018},
  eprint = {1803.08037},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1803.08037v2},
}