von Bally, G. ICO20: Biomedical Optics. SPIE Digital Library.
Tohutoru Kātū Chicago (17th ed.)von Bally, Gert. ICO20: Biomedical Optics. SPIE Digital Library.
Tohutoro MLA (9th ed.)von Bally, Gert. ICO20: Biomedical Optics. SPIE Digital Library.
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