A MEASUREMENT OF THE LIFETIME OF THE TAU-LEPTON - Abreu,P; Adam,W; Adami,F; Adye,T; Akesson,T; Alekseev,GD; Allen,P; Almehed,S; Alvsvaag,SJ; Amaldi,U; Anassontzis,E; Antilogus,P; et al. (PHYSICS LETTERS B, 1991)