@unpublished{FeudelSeehaferGalantietal.2007,
  author  = {Fred Feudel and Norbert Seehafer and Barak Galanti and Sten R{\"u}diger},
  title   = {Symmetry breaking bifurcations for the magnetohydrodynamic equations with helical forcing},
  institution = {Institut f{\"u}r Physik und Astronomie},
  series    = {NLD Preprints},
  number    = {31},
  year    = {2007},
}