@unpublished{DemircanSeehafer2007,
  author  = {Ayhan Demircan and Norbert Seehafer},
  title   = {Nonlinear square patterns in Rayleigh-B{\´e}nard convection},
  institution = {Interdisziplin{\"a}res Zentrum f{\"u}r Dynamik komplexer Systeme},
  series    = {NLD Preprints},
  number    = {62},
  year    = {2007},
}