@article{tsai2009langmuir,
  title={Drop impact upon micro-and nanostructured superhydrophobic surfaces},
  author={Tsai, Peichun and Pacheco, Sergio and Pirat, Christophe and Lefferts, Leon and Lohse, Detlef},
  journal={Langmuir},
  volume={25},
  number={20},
  pages={12293--12298},
  year={2009},
  publisher={ACS Publications}
}