@article{amaxproductemalgorithmforreconstructing,
  title = {A Max-Product EM Algorithm for Reconstructing Markov-tree Sparse Signals from Compressive Samples},
  author = {Zhao Song and Aleksandar Dogandzic},
  year = {2012},
  eprint = {1209.1064},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1209.1064v4},
}