@article{crossingsasasideeffectofdependency,
  title = {Crossings as a side effect of dependency lengths},
  author = {Ramon Ferrer-i-Cancho and Carlos Gómez-Rodríguez},
  year = {2015},
  eprint = {1508.06451},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1508.06451v2},
}