Cabello, C. I., 		Bertolini, G., 		Amaya, S., 		Arizaga, R., AND 		Trivi, M..
"Hydrophilic Character Study of Silica-gel by a Laser Dynamic Speckle Method" <em>Revista Cubana de Física</em> [Online], Volume 25 Number 2A (1 December 2008)