@unpublished{KapanadzeSchulze2008,
  author  = {David Kapanadze and Bert-Wolfgang Schulze},
  title   = {Pseudo-differential crack theory},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(2000) 09},
  year    = {2008},
}