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Journal of optoelectronics and advanced materials, 8 (2006) S. 2120 - 2125
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Journal of optoelectronics and advanced materials, 7 (2005) S. 517 - 520
OpenAccess 
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Journal of optoelectronics and advanced materials, 7 (2005) S. 107 - 114
OpenAccess 
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Aneva, Z.
2005
Journal of optoelectronics and advanced materials, 7 (2005) S. 1377 - 1382
OpenAccess 
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Journal of optoelectronics and advanced materials, 7 (2005) S. 91 - 98
OpenAccess 
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Journal of non-crystalline solids, 338-340 (2004) S. 421 - 424