@Article{ 
  ambdur08,
  author = { Ambrosio, Luigi and Durand-Cartagena, Estibalitz },
  title = { Metric differentiability of Lipschitz maps defined on Wiener spaces },
  journal = { Rend. Circ. Mat. Palermo  },
  year = { 2009 },
  volume = { 2 },
  number = { 58 },
  pages = { 1-10 },
  URL = { http://cvgmt.sns.it/paper/304/ },
  note = { cvgmt preprint}
}