An Approach to the Use of Glycol Alkoxysilane–Polysaccharide Hybrids in the Conservation of Historical Building Stones oleh Miguel Meléndez-Zamudio, Ileana Bravo-Flores, Eulalia Ramírez-Oliva, Antonio Guerra-Contreras, Gilberto Álvarez-Guzmán, Ramón Zárraga-Nuñez, Antonio Villegas, Merced Martínez-Rosales, Jorge Cervantes