Links:
[1] https://www.die.upm.es/en/category/categoria/tesis-doctorales
[2] https://www.die.upm.es/en/node/2637
[3] https://www.die.upm.es/en/content/andr%C3%A9s-santos-y-lle%C3%B3
[4] https://www.die.upm.es/sites/default/files/SYLVAIN%20FISCHER.pdf