Noise-induced narrowing of peaks in the power spectra of underdamped nonlinear oscillators.

@article{Dykman1990NoiseinducedNO,
  title={Noise-induced narrowing of peaks in the power spectra of underdamped nonlinear oscillators.},
  author={Dykman and Mannella and McClintock and Soskin and Stocks},
  journal={Physical review. A, Atomic, molecular, and optical physics},
  year={1990},
  volume={42 12},
  pages={7041-7049}
}