@bookPart{AegerterBozano_1992, title={Preparation and characterization of gels of SiO2-Al2O3 composition}, author={Aegerter, Michel A. and Bozano, Dorotéia F.}, isbn={0-471-54201-6}, doi={http://dx.doi.org/10.22028/D291-24159}, year={1992} }