@Article{ 
  cag,
  author = { Cagnetti, Filippo },
  title = { k-Quasiconvexity Reduces to Quasiconvexity },
  journal = { Proc. Roy. Soc. Edinburgh Sect. A },
  year = { 2011 },
  volume = { 141 },
  pages = { 673-708 },
  URL = { http://cvgmt.sns.it/paper/140/ },
  note = { cvgmt preprint}
}