@article{WegenerGerhardWirgesetal.2003,
  author    = {Wegener, Michael and Gerhard, Reimund and Wirges, Werner and Bergner, Andr{\´e} and Bergweiler, Steffen},
  title     = {Breathing modes of organ-pipe bodies : experimental detection with ring-shaped piezoelectric-polymer sensors},
  year      = {2003},
  language  = {en}
}
@article{BergweilerBergnerGoerneetal.2003,
  author    = {Bergweiler, Steffen and Bergner, Andr{\´e} and G{\"o}rne, Thomas and Wegener, Michael and Gerhard, Reimund},
  title     = {Breathing modes and sound radiation of metallic organ pipes},
  year      = {2003},
  language  = {en}
}