Revision history of "04.DA.15 - Oxide, Metal: Oxygen = 1:2 and similar, With small cations: Silica family" (Q161944)
From geokb
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.