@Article{ 
  DeLSzé15,
  author = { De Lellis, Camillo and Székelyhidi, László Jr. },
  title = { The $h$-principle and Onsager's conjecture },
  journal = { Eur. Math. Soc. Newsl. },
  year = { 2015 },
  volume = { 95 },
  pages = { 19-24 },
  URL = { http://cvgmt.sns.it/paper/2643/ },
  note = { cvgmt preprint}
}