@article{saddlepointapproachtolargetime,
  title = {Saddle-Point Approach to Large-Time Volatility Smile},
  author = {Chun Yat Yeung and Ali Hirsa},
  year = {2022},
  eprint = {2212.05671},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2212.05671v1},
}