@article{DkMPRS,
  title = "Improved bounds for the crossing numbers of ${K}_{m,n}$ and ${K}_n$",
  author = "de Klerk, E. and Pasechnik, D. V. and Maharry, J. and Richter, B. and Salazar, G.",
  year = "2006",
  journal = "SIAM Journal on Discrete Mathematics",
  pages = "189--202",
  volume = "20",
}