  The charmless semileptonic decay branching fraction has been measured, using
inclusive techniques, by the Aleph, Delphi and L3 experiments at LEP. The
average of their results is 1.74 +/- 0.37 +/- 0.38 +/- 0.21 10-3. From this
result the value of the |Vub| element in the CKM mixing matrix has been
derived, using OPE predictions, obtaining: |Vub| = (4.13 +0.42/-0.47
(stat.+det.) +0.43/-0.48 (b->c syst.) +0.24/-0.25 (b->u syst.) +/- 0.02 (taub)
+/- 0.20 (HQE)) 10-3.
