Paper  bibtex   

@article{896,
  author = {Biao Geng and Qian Xue and Xudong Zheng and Geng Li and Yan Ren and Haibo Dong},
  title = {The effect of wing flexibility on sound generation of flapping wings},
  year = {2017},
  journal = {Bioinspiration & biomimetics},
  url = {https://doi.org/10.1088/1748-3190/aa8447}
}