A MEASUREMENT OF B-MESON PRODUCTION AND LIFETIME USING DL- EVENTS IN Z(0) DECAYS - ABREU,P; ADAM,W; ADYE,T; AGASI,E; ALEKSEEV,GD; ALGERI,A; ALLEN,P; ALMEHED,S; ALVSVAAG,SJ; AMALDI,U; ANASSONTZIS,EG; ANDREAZZA,A; et al. (ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1993)