@inproceedings{wirfalt_bouleux_jansson_stoica_2011, 
  title={Subspace-based frequency estimation utilizing prior information}, 
  DOI={10.1109/ssp.2011.5967751}, 
  publisher={IEEE}, 
  author={Wirfalt and Bouleux and Jansson and Stoica}, 
  year={2011}
  }