@unpublished{NazaikinskiiSchulzeSterninetal.2008,
  author  = {Vladimir Nazaikinskii and Bert-Wolfgang Schulze and Boris Sternin and Victor Shatalov},
  title   = {Quantization of symplectic transformations on manifolds with conical singularities},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(1997) 23},
  year    = {2008},
}