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Kumar, G.A., Nampoori, V.P.N., Vallabhan, C.P.G. et al. Emission spectral studies of phthalocyanines in borate glass matrix. Journal of Materials Science Letters 19, 1669–1672 (2000). https://doi.org/10.1023/A:1006778413332
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DOI: https://doi.org/10.1023/A:1006778413332