Direct demonstration of the two-phonon structure of the Jπ=14742keV− state of Sr88RemoveJ. Isaak, D. Savran, N. Pietralla, N. Tsoneva, A. Zilges, K. Eberhardt, C. Geppert, C. Gorges, H. Lenske, and D. RenischPhys. Rev. C 108, L051301 (2023)
