@article{multifidelitymodelingforphysicsinformed,
  title = {Multifidelity Modeling for Physics-Informed Neural Networks (PINNs)},
  author = {Michael Penwarden and Shandian Zhe and Akil Narayan and Robert M. Kirby},
  year = {2021},
  eprint = {2106.13361},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2106.13361v2},
}