@Article{ 
  balmantys,
  author = { Balogh, Zoltan and Manfredi, Juan and Tyson, Jeremy },
  title = { Fundamental solution for the Q-Laplacian and sharp Moser-Trudinger inequality on Carnot groups },
  journal = { Journal of Functional Analysis },
  year = { 2003 },
  volume = { 204 },
  number = { 1 },
  pages = { 35-49 },
  URL = { http://cvgmt.sns.it/paper/348/ },
  note = { cvgmt preprint}
}