@inproceedings{
  author = {A. Czylwik and A. Dekorsy},
  year = {2002},
  month = {Feb},
  title = {Optimization of Downlink Beamforming for Systems with Frequency Duplex},
  pages = {111-116},
  address={Zurich, Switzerland},
  booktitle={International Zurich Seminar on Broadband Communications}
}