1. 1L. R. Mernagh , Enamels: Manufacture and Application to Iron and Steel Ware , p. 96 . Charles Griffin & Co., Ltd., London, 1928 ; Ceram. Abs., 8 [2] 100 (1929).
2. 3Julius Grunwald, Raw Materials of Enamel Industry , p. 129 . Charles Griffin & Co., Ltd., London, 1914 .
3. THE EFFECT OF ZIRCONIUM OXIDE IN GLASSES, GLAZES, AND ENAMELS