@article{parameterestimationinsphericalsymmetry,
  title = {Parameter estimation in spherical symmetry groups},
  author = {Yu-Hui Chen and Dennis Wei and Gregory Newstadt and Marc DeGraef and Jeffrey Simmons and Alfred Hero},
  year = {2014},
  eprint = {1411.2540},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1411.2540v2},
}