D ∗→Dπ and D ∗→Dγ decays: axial coupling and magnetic moment of D ∗ mesonDamir Bećirević and Benjamin HaasEur. Phys. J. C, 71 8 (2011) 1734DOI: https://doi.org/10.1140/epjc/s10052-011-1734-y