Enlaces:[1] https://www.die.upm.es/category/categoria/tesis-doctorales [2] https://www.die.upm.es/sites/default/files/TD%20%C3%81lvaro%20de%20Guzm%C3%A1n%20Fern%C3%A1ndez%20Gonz%C3%A1lez.pdf