A guide to the QCD light-cone sum rules for b-quark decays Alexander Khodjamirian, Blaženka Melić and Yu-Ming Wang Eur. Phys. J. Spec. Top., 233 2 (2024) 271-298 Published online: 11 December 2023 DOI: 10.1140/epjs/s11734-023-01046-6