@article{zhao_huang_wang_yu_chu_2016, 
  title={Time-frequency Analysis of Track Irregularity Based on Orthogonal Empirical Mode Decomposition}, 
  volume={14}, 
  DOI={10.12928/telkomnika.v14i3a.4400}, 
  number={3A}, 
  publisher={Universitas Ahmad Dahlan}, 
  author={Zhao and Huang and Wang and Yu and Chu}, 
  year={2016}, 
  month={Sep}
  }