@article {Abreu:1991xa,
	title = {{Search for excited charged leptons in Z0 decays}},
	journal = {Z. Phys.},
	volume = {C53},
	year = {1992},
	pages = {41-49},
	doi = {10.1007/BF01483871},
	author = {Abreu, P. and others}
}
