@book{21019,
	author = {Oppenheim Alan V},
	title = {Discrete-Time signal Processing},
	publisher = {Pearson Education Publisher},
	address = {India},
	edition = {2nd},
	url = {https://libgen.is/book/index.php?md5=CEB8F6E1E7E8077697105530229AE1A7}
}