@article{akos2010thermal,
  title={Thermal soaring flight of birds and unmanned aerial vehicles},
  author={{\'A}kos, Zsuzsa and Nagy, M{\'a}t{\'e} and Leven, Severin and Vicsek, Tam{\'a}s},
  journal={Bioinspiration \& biomimetics},
  volume={5},
  number={4},
  pages={045003},
  year={2010},
  publisher={IOP Publishing}
}