@book{91968,
	author = {Badr, Bellaj,},
	title = {Blockchain by example : a developer's guide to creating decentralized applications using Bitcoin, Ethereum, and Hyperledger /},
	publisher = {Packt Publishing},
	year = {2018},
	address = {Birmingham, UK},
	url = {http://portal.igpublish.com.libraryumpsa.idm.oclc.org/iglibrary/obj/PACKT0004978?dtbs=&searchid=1570504581118S033JW9GlhsNBO0IBPlXv}
}