Subleading Shape Functions in bar {B} -> X_{s,d} ℓ ℓ Hurth, T. ; Turczyk, S. ; Benzke, M. Abstract Publication: Acta Physica Polonica B Pub Date: 2018 DOI: 10.5506/APhysPolB.49.1141 Bibcode: 2018AcPPB..49.1141H