@article{SpecknerAntonDrachenfelsetal.2004,
  author    = {Speckner, T. and Anton, G. and Drachenfels, W. von and Frommberger, F. and Helbing, K. and Hoffmann, M. and Kiel, B. and Michel, T. and Naumann, J. and Zeitler, G.},
  title     = {The GDH-Moeller-Polarimeter at ELSA},
  series = {Nuclear Instruments and Methods in Physics Research Section},
  journal   = {Nuclear Instruments and Methods in Physics Research Section},
  number    = {A 519},
  doi       = {10.1016/j.nima.2003.11.016},
  pages     = {518 -- 531},
  year      = {2004},
  language  = {en}
}
@article{NaumannAntonBocketal.2003,
  author    = {Naumann, J. and Anton, G. and Bock, A. and Grabmayr, P. and Helbing, K. and Kiel, B. and Menze, D. and Michel, T. and Proff, S. and Sauer, M. and Schumacher, M. and Speckner, T. and Weihofen, W. and Zeitle, G.},
  title     = {A photon tagging system for the GDH-Experiment at ELSA},
  series = {Nuclear Instruments and Methods in Physics Research},
  journal   = {Nuclear Instruments and Methods in Physics Research},
  number    = {A 498},
  pages     = {211 -- 219},
  year      = {2003},
  language  = {en}
}