@Article{ 
  drakonzeg,
  author = { Dragoni, Federica and Kontis, Vasilis and Zegarlinski, Boguslaw },
  title = { Ergodicity of Markov Semigroups with Hoermander type generators in Infinite Dimensions },
  journal = { Potential Analysis },
  year = { 2012 },
  volume = { 37 },
  number = { 3 },
  pages = { 199-227 },
  URL = { http://cvgmt.sns.it/paper/1179/ },
  note = { cvgmt preprint}
}