@unpublished{SchulzeTarkhanov2009,
  author  = {Bert-Wolfgang Schulze and Nikolai Nikolaevich Tarkhanov},
  title   = {Boundary value problems with Toeplitz conditions},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(2005) 08},
  year    = {2009},
}