1. 2L. Gildart, and D. F. Clifton , "First Eighteen-Month Progress Report, Selenides Project," ASTIA-AD203361, pp.17 -27 , 1958 .
2. 3E. M. Guyer , "Electrical Properties of Glass and Ceramic for Electronics ," Corning Glass Works publication, 1958 ; pp.6 -8 .
3. On the relation between ionic conductivity and breakdown strength of glass
4. 4J. Vermeer , "On the Mechanism of Dielectric Breakdown in Glass and Its Relation to Electrical Conduction ," Doctoral Thesis , Technological University, Delft, Netherlands, 1959 .