"Silice vetrosa." . . "CristaloquĂ­mica." . . "Quarzglas." . . . . . . . . . . . . . . . . . . . . . "The compacted states of vitreous silica" . . "The compacted states of vitreous silica"@en . . . "Kompression." . . "Vetri - Struttura." . . "Silicatos." . .