@unpublished{KapanadzeSchulzeWitt2008,
  author  = {David Kapanadze and Bert-Wolfgang Schulze and Ingo Witt},
  title   = {Coordinate invariance of the cone algebra with asymptotics},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(2000) 01},
  year    = {2008},
}