@inproceedings{rakovic_denkovski_hadzi-velkov_gavrilovska_2015, 
  title={Optimal time sharing in underlay cognitive radio systems with RF energy harvesting}, 
  DOI={10.1109/icc.2015.7249556}, 
  publisher={IEEE}, 
  author={Rakovic and Denkovski and Hadzi-Velkov and Gavrilovska}, 
  year={2015}
  }