@article{wang_wang_sun_zhang_zissimos_2014, 
  title={Gray bootstrap method for estimating frequency-varying random vibration signals with small samples}, 
  volume={27}, 
  DOI={10.1016/j.cja.2013.07.023}, 
  publisher={Elsevier BV}, 
  author={Wang and Wang and Sun and Zhang and Zissimos}, 
  year={2014}
  }