@article{nonnativespeakerverificationforspoken,
  title = {Non-native Speaker Verification for Spoken Language Assessment},
  author = {Lin-Lin Wang and Yu Wang and Mark J. F. Gales},
  year = {2019},
  eprint = {1909.13695},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1909.13695v1},
}