@book{3228,
	author = {Ashenden, Peter J.},
	title = {Digital design},
	publisher = {Elesevier},
	year = {2013},
	address = {New Delhi},
	url = {https://libgen.is/book/index.php?md5=F4B1A8FD554D47581E13F093B1943D7A}
}