@misc{indiciae705357c891a9,
  title = {Nonlinear Hamiltonians with applications to quantum hydrodynamics.},
  author = {P Goldberg and WM Schreiber and LF Landovitz and G Sandri},
  year = {1985},
  doi = {10.1103/physreva.31.2484},
  url = {https://pubmed.ncbi.nlm.nih.gov/9895783/},
  note = {Source identifier: 9895783}
}