@BOOK{ Book!D - 89989779,
AUTHOR = " Govind P. Agrawal.",
TITLE = "Fiber-optic communication systems",
LIBRARY= "کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Fiber optics.,Optical communications.",
URL = "/book/89989779/Fiberoptic-communication-systems/"}