@Article{ 
  ManMor16,
  author = { Manno, Gianni and Moreno, Giovanni },
  title = { Meta-Symplectic Geometry of 3rd Order Monge-Ampère Equations and their Characteristics },
  journal = {  Symmetry, Integrability and Geometry: Methods and Applications (SIGMA) },
  year = { 2016 },
  doi = { http://dx.doi.org/10.3842/SIGMA.2016.032 },
  volume = { 12 },
  number = { 032 },
  pages = { 35 pages },
  URL = { https://gecogedi.dimai.unifi.it/paper/9/ },
  note = { cvgmt preprint}
}