@article {Abreu:1992jn,
	title = {{A Measurement of B meson production and lifetime using D lepton- events in Z0 decays}},
	journal = {Z. Phys.},
	volume = {C57},
	year = {1993},
	pages = {181-196},
	doi = {10.1007/BF01565048},
	author = {Abreu, P. and others}
}
