Low-lying dipole and quadrupole states - Are they new excitation modes?E. G. Lanza, L. Pellegri, M. V. Andrés, F. Catara and A. VitturiEur. Phys. J. A, 55 12 (2019) 235DOI: https://doi.org/10.1140/epja/i2019-12797-y