@misc{W2100969003,
  author = {J.-L. Gauvain and Chin‐Hui Lee},
  title = {Maximum a posteriori estimation for multivariate Gaussian mixture observations of Markov chains},
  year = {1994},
  howpublished = {IEEE Transactions on Speech and Audio Processing},
  doi = {https://doi.org/10.1109/89.279278}
}