@article{kampen2007,
  title={Stochastic Processes in Physics and Chemistry},
  author={N. G. van Kampen},
  year={2007},
  journal={Elsevier eBooks},
  doi={10.1016/b978-0-444-52965-7.x5000-4},
  url={https://doi.org/10.1016/b978-0-444-52965-7.x5000-4}
}