@article{goldsmith_jafar_maric_srinivasa_2009, 
  title={Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective}, 
  volume={97}, 
  DOI={10.1109/jproc.2009.2015717}, 
  publisher={Institute of Electrical and Electronics Engineers (IEEE)}, 
  author={Goldsmith and Jafar and Maric and Srinivasa}, 
  year={2009}
  }