@article{7132,
  author = {J. Katriel and David Hummer},
  title = {Analytic solutions for three- and four-wave mixing via generalised Bose operators},
  year = {1981},
  journal = {Journal of Physics A: Mathematical and General},
  volume = {14},
  pages = {1211-1224},
  month = {Jan-05-1981},
  issn = {0305-4470},
  doi = {10.1088/0305-4470/14/5/039},
}