1. 2R. J. Charles, and J. E. Burke ; pp.1 -38 inProgress in Ceramic Science , Vol. 1 . Pergamon Press, New York, 1961 .
2. 3W. B. Hillig, and J. D. Mackenzie ; pp.152 -94 inModern Aspects of the Vitreous State , Vol. 2 . Butterworth, Inc., Washington, D. C., 1962 .
3. VI. The phenomena of rupture and flow in solids