@article{kristensen_dahlgren_nyström_2013, 
  title={PO-0896: Treatment planning training for a large group in geographically spread centres}, 
  volume={106}, 
  DOI={10.1016/s0167-8140(15)33202-3}, 
  publisher={Elsevier BV}, 
  author={Kristensen and Dahlgren and Nyström}, 
  year={2013}
  }