@inproceedings{Baltuille:4331,
      author       = "Colucci, M. F. and Baltuille, J. M. and Gisbert Aguilar,
                      Josep and Buj Fandos, Óscar and Sanz, D.",
      title        = "A new natural stone database: from the logical design to
                      implementation",
      year         = "2007",
}