@article{SommerKnorr,
  author    = {Sommer, Thomas and Knorr, Peter},
  title     = {Digitaler Radiorundfunk in {\"O}sterreich},
  series = {e \& i Elektrotechnik und Informationstechnik},
  journal   = {e \& i Elektrotechnik und Informationstechnik},
  subject      = {Digital Radio},
  language  = {de}
}
@misc{Sommer,
  author    = {Sommer, Thomas},
  title     = {Quo vadis digitaler Radiorundfunk in {\"O}sterreich},
  subject      = {Digital Radio},
  language  = {de}
}