@article{aniterativestepfunctionestimatorfor,
  title = {An iterative step-function estimator for graphons},
  author = {Diana Cai and Nathanael Ackerman and Cameron Freer},
  year = {2014},
  eprint = {1412.2129},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1412.2129v2},
}