@inproceedings{condat_ville_unser_2006, 
  title={Efficient Reconstruction of Hexagonally Sampled Data using Three-Directional Box-Splines}, 
  DOI={10.1109/icip.2006.312430}, 
  publisher={IEEE}, 
  author={Condat and Ville and Unser}, 
  year={2006}
  }