@unpublished{Rebahi1998,
  author    = {Rebahi, Y.},
  title     = {Asymptotics of solutions of differential equations on manifolds with cusps},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-25372},
  year      = {1998},
  language  = {en}
}
@book{Rebahi1998,
  author    = {Rebahi, Y.},
  title     = {Asymptotics of solutions of differential equations on manifolds with cusps},
  series = {Preprint / Universit{\"a}t Potsdam, Institut f{\"u}r Mathematik},
  volume    = {1998, 25},
  journal   = {Preprint / Universit{\"a}t Potsdam, Institut f{\"u}r Mathematik},
  publisher = {Univ.},
  address   = {Potsdam},
  pages     = {21 S.},
  year      = {1998},
  language  = {en}
}