@unpublished{DickenMaass2007,
  author  = {Volker Dicken and Peter Maaß},
  title   = {Wavelet-Galerkin methods for ill-posed problems},
  institution = {Institut f{\"u}r Physik und Astronomie},
  series    = {NLD Preprints},
  number    = {22},
  year    = {2007},
}