@InProceedings{trianni04ias,
  author = 	 {V.~Trianni and S.~Nolfi and M.~Dorigo},
  title = 	 {Hole Avoidance: Experiments in Coordinated Motion on Rough Terrain},
  booktitle = 	 {Intelligent Autonomous Systems 8},
  pages =	 {29-36},
  year =	 2004,
  editor =	 {F.~Groen and N.~Amato and A.~Bonarini and E.~Yoshida and B.~{Kr\"ose}},
  publisher =	 {IOS Press, Amsterdam, The Netherlands}
}