1. Study of the limestone rock used in the construction of palaces in Madrid during 18th and 19th centuries;Dapena,1988
2. Tables of experimental reference intensity ratios;Davis;Power Diffraction,1988
3. The thermodinamics of frost damage to porous solids;Everet;Trans. Faraday Soc.,1961
4. Ueber Zusammenhange zwischen salzkristallisations druk und Porenradienverteilung;Fitzner;GP Newslett.,1982
5. Degradation of building materials of the Toledo Cathedral (Spain);Lopez de Azcona,1991