@inproceedings{1055695, title = "Estimation of the content of clay minerals and its significance in stone decay", author = "Rodrigues, Delgado", year = "1976", pages = "105-108", booktitle = "2ον Διεθνές συμπόσιον επί της καταστροφής των λίθων είς κατασκευάς. 2me Colloque international sur la détérioration des pierres en oeuvre. 2nd International symposium on the deterioration of building stones" }