@book{12339,
	author = {Haykin, Simon},
	title = {An introduction to analog and digital communications},
	publisher = {John Wiley & Sons Publisher},
	year = {2005},
	address = {India},
	url = {https://libgen.is/book/index.php?md5=4B6F112804D2CF17B78D7ADB663346C8}
}