@unpublished{FedosovSchulzeTarkhanov2008,
  author  = {Boris Fedosov and Bert-Wolfgang Schulze and Nikolai Nikolaevich Tarkhanov},
  title   = {On index theorem for symplectic orbifolds},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(2003) 07},
  year    = {2008},
}