@article{yin_zhu_hu_2021, 
  title={A Survey on 2D and 3D Contactless Fingerprint Biometrics: A Taxonomy, Review, and Future Directions}, 
  DOI={10.1109/ojcs.2021.3119572}, 
  publisher={Institute of Electrical and Electronics Engineers (IEEE)}, 
  author={Yin, Xuefei and Zhu, Yanming and Hu, Jiankun}, 
  year={2021}
  }