@Article{ 
  focmar07,
  author = { Focardi, Matteo and Mariano, Paolo Maria },
  title = { Convergence of asynchronous variational integrators in linear elastodynamics },
  journal = { Int. J. Numer. Meth. Engng. },
  year = { 2007 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/192/ },
  note = { cvgmt preprint}
}