@misc{Knapp2005,
  author    = {Alexandra Knapp},
  title     = {Heliumdoppelionisation durch Elektronenstoß : Aufbau einer (e,3e)-Apparatur},
  url       = {http://hsbpc1.ikf.physik.uni-frankfurt.de/web/publications/diplom_doktor/},
  institution = {Physik},
  type      = {diplom},
  pages     = {103},
  year        = {2005},
}