@unpublished{KrainerSchulze2008,
  author  = {Thomas Krainer and Bert-Wolfgang Schulze},
  title   = {On the inverse of parabolic systems of partial differential equations of general form in an infinite space-time cylinder [Part 1: Chapter 1+2]},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(2001) 14},
  year    = {2008},
}