Schalck, R. The Proper Care of Optics: Cleaning, Handling, Storage, and Shipping. SPIE Digital Library.
Citace podle Chicago (17th ed.)Schalck, Robert. The Proper Care of Optics: Cleaning, Handling, Storage, and Shipping. SPIE Digital Library.
Citace podle MLA (9th ed.)Schalck, Robert. The Proper Care of Optics: Cleaning, Handling, Storage, and Shipping. SPIE Digital Library.
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