@article{explainableconversationalquestionansweri,
  title = {Explainable Conversational Question Answering over Heterogeneous Sources via Iterative Graph Neural Networks},
  author = {Philipp Christmann and Rishiraj Saha Roy and Gerhard Weikum},
  year = {2023},
  eprint = {2305.01548},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2305.01548v2},
}