@book{637,
	author = {Tanenbaum Anderw S},
	title = {Computer Networks},
	publisher = {Pearson Education Publisher},
	address = {New Delhi},
	edition = {4th},
	url = {https://www.libgen.is/book/index.php?md5=28F93AE092784B30A5ED2EE53D78D104}
}