@book{21023,
	author = {Oppenheim, Alan V.},
	title = {Discrete Time Signal Processings},
	publisher = {Pearson Education Publisher},
	year = {2004},
	address = {India},
	edition = {2nd},
	url = {https://libgen.is/book/index.php?md5=50DDCDF33EF65657FDF226D403A169B9}
}