@article {Abreu:1999qh,
	title = {{Measurement of the rate of b anti-b b anti-b events in hadronic Z decays and the extraction of the gluon splitting into b anti-b}},
	journal = {Phys. Lett.},
	volume = {B462},
	year = {1999},
	pages = {425-439},
	doi = {10.1016/S0370-2693(99)00905-3},
	author = {Abreu, P. and others}
}
