@article{reijns:2007,
	author          = {G.L. Reijns and A.J.C. van Gemund},
	title           = {Reliability Analysis of Hierarchical Systems using Statistical Moments},
	journal         = {IEEE Transactions on Reliability},
	year            = {2007},
	month           = {September},
	volume          = {56},
	number          = {3},
	pages           = {1-8},
	issn            = {0018-9529},
	group           = {SE}
}