@inproceedings{CamposTaberner15-igarss,
  author    = {Manuel Campos-Taberner and
               Adriana Romero and
               Carlo Gatta and
               Gustau Camps-Valls},
  title     = {Shared feature representations of LiDAR and optical images: Trading 
               sparsity for semantic discrimination},
  booktitle = {IEEE International Geoscience and Remote Sensing Symposium (IGARSS)},
  pages     = {4169-4172},
  year      = {2015},
}