Enlaces:[1] https://www.die.upm.es/category/categoria/tesis-doctorales [2] https://www.die.upm.es/perfil/jos%C3%A9-ignacio-izpura-torres-0 [3] https://www.die.upm.es/sites/default/files/TD%20Juan%20Francisco%20Valtue%C3%B1a%20Pablo.pdf