@article{LangerRoettgersSchliermannetal.1985,
  author    = {Langer, E.-M. and R{\"o}ttgers, H. R. and Schliermann, M. G. and Meier, E.-M. and Miltenburger, H. G. and Schumann, J. and G{\"o}hde, W.},
  title     = {Cycling S-Phase cells in Animal and Spontaneous Human Tumours},
  series = {Acta Radiologica Oncology},
  journal   = {Acta Radiologica Oncology},
  number    = {24},
  year      = {1985},
  language  = {en}
}
@article{LangerHemmerRoettgersetal.1987,
  author    = {Langer, E.-M. and Hemmer, J. and R{\"o}ttgers, H. R. and G{\"o}hde, W.},
  title     = {Anti-BrdUrd Monoclonal Anti-body Labelling- A Comparison Between BrdUrd, 3H-Thymidine and Flow Cytometry Data},
  series = {Elmau Proceedings, Academic Press},
  journal   = {Elmau Proceedings, Academic Press},
  year      = {1987},
  language  = {en}
}