@article{StulpeScholz2010,
  author    = {Werner Stulpe and Erhard Scholz},
  title     = {Hilbert Space / Scholz, Erhard ; Stulpe, Werner},
  journal   = {Compendium of Quantum Physics : concepts, experiments, history and philosophy / Daniel Greenberger ... ed.},
  pages     = {291 -- 295},
  year      = {2010},
}