Romaniuk, R. Optical Fibers and Their Applications 2015. SPIE Digital Library.
Chicago-viite (17. p.)Romaniuk, Ryszard. Optical Fibers and Their Applications 2015. SPIE Digital Library.
MLA-viite (8. p.)Romaniuk, Ryszard. Optical Fibers and Their Applications 2015. SPIE Digital Library.
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