Iglesias, Manuel, José Luis Prada, and Nuria Guasch. 2008. “Technique for Cleaning Tarragona Miocene Age Dolomitized Silty Limestone, Altered by Urban Pollution”. Materiales De Construcción 58 (289-290):247-62. https://doi.org/10.3989/mc.2008.v58.i289-290.87.