@unpublished{Gosson2009,
  author  = {Maurice A. de Gosson},
  title   = {Extended Weyl calculus and application to the phase-space Schr{\"o}dinger equation},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(2005) 11},
  year    = {2009},
}