@ARTICLE\{IMM2000-01949,
    author       = "S. K. Johansen and O. Bang",
    title        = "Soliton collisions in quadratic bulk media with a
 nonvanishing Kerr non-linearity",
    year         = "2000",
    pages        = "12-13",
    journal      = "{DOPS} Nyt - Danish Optical Society News, Special issue on Northern Optics",
    volume       = "15",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1949-full.html"
}