@book{NazajkinskijSavinSchulzeetal.2002,
  author    = {Vladimir E. Nazajkinskij and Anton Savin and Bert-Wolfgang Schulze and Boris Sternin},
  title     = {Elliptic theory on manifolds with nonisolated singularities : 1 the index of families of cone-degenerate operators},
  year      = {2002},
}