@article{opbergdiscoveringcausalsentencesusing,
  title = {OpBerg: Discovering causal sentences using optimal alignments},
  author = {Justin Wood and Nicholas J. Matiasz and Alcino J. Silva and William Hsu and Alexej Abyzov and Wei Wang},
  year = {2019},
  eprint = {1904.02032},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1904.02032v1},
}