@Article{ADL-boltzmann,
  author = {L. Arlotti and A. Deutsch and M. Lachowicz},
  title = {On a discrete Boltzmann type model of swarming},
  journal	= {Math. Comp. Model},
  volume	= {41},
  pages		= {1193--1201},
  year		= {2005},
  keywords	= "bison",
  pdfurl	= "http://www.cs.unibo.it/bison/publications/LAM_final.pdf"
}