@Article{wowra1991-tdt,
  author =          {Wowra, B.},
  author =          {Layer, G.},
  author =          {Schad, L. R.},
  author =          {Ullrich, B.},
  author =          {Semmler, W.},
  author =          {Aschoff, A.},
  author =          {Kiessling, M.},
  author =          {Kunze, S.},
  title =           {Three-dimensional time-of-flight MR-angiography and the surgical indication of brainstem cavernomas.},
  journal =         {Acta Neurochir (Wien)},
  year =            {1991},
  volume =          {112},
  pages =           {77-82},
  number =          {3-4},
  institution =     {Department of Neurosurgery, The University, Heidelberg, Federal Republic of Germany.}}