@inproceedings{ÁlvarezOrtega:5881,
      author       = "Labordeta Subías, Miguel and Álvarez Ortega, Manuel",
      title        = "Carta mecanografiada de Manuel Álvarez Ortega a Miguel
                      Labordeta - 16/12/1951",
      year         = "1951",
      note         = "Mecanografiada",
}