@Article{ 
  ponste,
  author = { Ponosov, Arkady and Stepanov, Eugene },
  title = { Invariant measures for generalized random dynamical systems },
  journal = { International conference on fixed point theory and its applications (Valencia, 2003), G.G. Falset, E.L Fuster, B. Sims (ed.), Yokohama publishers, Yokohama  },
  year = { 2004 },
  pages = { 227-260 },
  URL = { http://cvgmt.sns.it/paper/605/ },
  note = { cvgmt preprint}
}