1. Crystal Growth and Electro‐Optic Effect of Bismuth Germanate, Bi4(GeO4)3
2. Luminescence of Bi4 Ge3 O12 : Spectral and decay properties
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4. P. Franzini and coworkers, Columbia Univ., SUNY Stony Brook.
5. D. Coyne, M. Cavalli-Sforza, I. Kirkbride, Princeton University.