@article{Boesenberg1998,
  author    = {B{\"o}senberg, Enka},
  title     = {Brustschmerzen in der Hausarztpraxis},
  series = {Seminar Hausarztpraxis},
  volume    = {8},
  journal   = {Seminar Hausarztpraxis},
  pages     = {4 -- 10},
  year      = {1998},
  language  = {de}
}
@article{Boesenberg1998,
  author    = {B{\"o}senberg, Enka},
  title     = {Bauchschmerzen in der Hausarztpraxis},
  series = {Seminar Hausarztpraxis},
  volume    = {11},
  journal   = {Seminar Hausarztpraxis},
  pages     = {56 -- 62},
  year      = {1998},
  language  = {de}
}