@article{onopenuniversecausalreasoning,
  title = {On Open-Universe Causal Reasoning},
  author = {Duligur Ibeling and Thomas Icard},
  year = {2019},
  eprint = {1907.02170},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1907.02170v2},
}