@article {Abreu:1991bx,
	title = {{A Study of the reaction e+ e- {\textendash}-> mu+ mu- around the Z0 pole}},
	journal = {Phys. Lett.},
	volume = {B260},
	year = {1991},
	pages = {240-248},
	doi = {10.1016/0370-2693(91)90998-6},
	author = {Abreu, P. and others}
}
