@Article{ 
  Erh13a,
  author = { Erhardt, André H. },
  title = { Calderón-Zygmund theory for parabolic obstacle problems with nonstandard growth },
  journal = { Adv. Nonlinear Anal. },
  year = { 2014 },
  doi = { 10.1515/anona-2013-0024 },
  volume = { 3 },
  number = { 1 },
  pages = { 15-44 },
  URL = { http://cvgmt.sns.it/paper/2349/ },
  note = { cvgmt preprint}
}