@article{robar_gevaert_todorovic_solberg_2016, 
  title={EP-1921: Novalis certification of stereotactic radiation therapy programs: methodology and current status}, 
  volume={119}, 
  DOI={10.1016/s0167-8140(16)33172-3}, 
  publisher={Elsevier BV}, 
  author={Robar and Gevaert and Todorovic and Solberg}, 
  year={2016}
  }