@book{5104,
	author = {Toeroe, Maria and Tam, Francis},
	title = {Service Availability :},
	publisher = {John Wiley & Sons,},
	year = {c 2012. },
	address = {West Sussex, United Kingdom :},
	url = {https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/9781119941378?download=true}
}