@article{Garcimartín:44959,
      author        = "Garcimartín, A. and Pastor, J.M. and Ferrer, L.M. and
                       Ramos, J.J. and Martín-Gómez, C. and Zuriguel, I.",
      title         = "{Flow and clogging of a sheep herd passing through a
                       bottleneck}",
      year          = "2015",
}