@article{removingnonsmoothnessinsolvingblack,
  title = {Removing non-smoothness in solving Black-Scholes equation using a perturbation method},
  author = {Endah R. M. Putri and Lutfi Mardianto and Amirul Hakam and Chairul Imron and Hadi Susanto},
  year = {2021},
  eprint = {2104.07839},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2104.07839v2},
}