@article {Abreu:1999vw,
	title = {{Measurements of the Z partial decay width into c anti-c and multiplicity of charm quarks per b decay}},
	journal = {Eur. Phys. J.},
	volume = {C12},
	year = {2000},
	pages = {225-241},
	doi = {10.1007/s100529900228},
	author = {Abreu, P. and others}
}
