@book{KleinBadaninKorotyaev2001,
  author    = {Klein, Markus and Badanin, Andrei and Korotyaev, Evgeni},
  title     = {The Marchenko-Ostrovski mapping and the trace formula for the Camassa-Holm equation},
  series = {Preprint / SFB 288, Differentialgeometrie und Quantenphysik},
  volume    = {559},
  journal   = {Preprint / SFB 288, Differentialgeometrie und Quantenphysik},
  address   = {Berlin},
  year      = {2001},
  language  = {en}
}