1. Estimation of the content of clay minerals and its significance in stone decay;Delgado Rodrigues,1976
2. Méthodes de classification des pierres;Mamillan;Annales I.T.B.T.P.,1958
3. Rock swelling test;Nascimento,1968
4. Recommended tests to measure the deterioration of stone and to assess the effectiveness of treatment methods;RILEM;Matér. Constr.,1980
5. Determinations of correlation relationships between strength and some physical characteristics of rocks;Smorodinov,1970