1. B.I. Kazakov, in: Popular Library of Chemical Elements, Part 2, Nauka, Moscow, 1977, p. 245 (in Russian)
2. The Dissociation of Mercuric Oxide
3. E.K. Kazenas, D.M. Chizhikov, Pressure and Composition of Vapor under Oxides of Chemical Elements, Nauka, Moscow, 1976 (in Russian)
4. On the rôle of supersaturation and on the limiting stage in topochemical reactions