@Article{ 
  BonGus19a,
  author = { Bonicatto, Paolo and Gusev, Nikolay },
  title = { On the structure of divergence-free measures on $\mathbb R^2$ },
  journal = { Adv. Calc. Var. },
  year = { 2022 },
  volume = { 15 },
  pages = { 879–911 },
  URL = { http://cvgmt.sns.it/paper/4552/ },
  note = { cvgmt preprint}
}