@article{avariationalemmethodforpolezero,
  title = {A Variational EM Method for Pole-Zero Modeling of Speech with Mixed Block Sparse and Gaussian Excitation},
  author = {Liming Shi and Jesper Kjær Nielsen and Jesper Rindom Jensen and Mads Græsbøll Christensen},
  year = {2017},
  eprint = {1706.07927},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1706.07927v1},
}