Inclusive semileptonic decays of polarized Λb Baryons into polarized τ-leptons S. Balk, J. G. Körner and D. Pirjol Eur. Phys. J. C, 1 1-2 (1998) 221-233 Published online: 27 February 2005 DOI: 10.1007/BF01245811