@inproceedings{roeper2006ctusfusion,
  author = {B. Roeper and W. Wein and P. Kneschaurek and M. Molls and M. Dobritz and N. Navab},
  title = {Image-based fusion of diagnostic ultrasound and planning CT for radiotherapy of head and neck cancer – a way towards improvement of regional target volume delineation},
  booktitle = {DEGRO 2006 Proceedings},
  month = May,
  year = 2006
}