@article{anadaptiveandexplicitfourthorderrunge,
  title = {An Adaptive and Explicit Fourth Order Runge-Kutta-Fehlberg Method Coupled with Compact Finite Differencing for Pricing American Put Options},
  author = {Chinonso Nwankwo and Weizhong Dai},
  year = {2020},
  eprint = {2007.04408},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2007.04408v5},
}