@article {19484,
	title = {A Fault Model for Upgrades in Distributed Systems (CMU-PDL-08-115)},
	journal = {Parallel Data Laboratory},
	year = {2008},
	month = {2008/12/01/},
	url = {http://repository.cmu.edu/pdl/10},
	author = {Tudor Dumitras and Kavulya, Soila and Narasimhan, Priya}
}
