@book{38057,
	author = {"Shevgaonkar, R.K."},
	title = {Advanced Optical Communication:},
	publisher = {Indian Insitiute of Technology},
	address = {Bombay},
	url = {http://video.snu.edu.in/index.php?id=11369&cat=Electronics And Communication Engineering&course=Advanced Optical Communication&url=Phase2_Video/117101002/mod01lec34.mp4}
}