@article{JMLR:v22:20-406,
  author  = {Henning Lange and Steven L. Brunton and J. Nathan Kutz},
  title   = {From Fourier to Koopman: Spectral Methods for Long-term Time Series Prediction},
  journal = {Journal of Machine Learning Research},
  year    = {2021},
  volume  = {22},
  number  = {41},
  pages   = {1--38},
  url     = {http://jmlr.org/papers/v22/20-406.html}
}